I agree with this.
I think it is a safe statement to make that BioLogos is often perceived as theologically on the liberal side, even if that does not reflect the intentions or the private beliefs of particular personnel. And I think that perception of theological liberalism has made many “borderline” evangelical/conservative Christians, who might be persuaded to accept evolution if they trusted that the purveyors of it were firmly orthodox/traditional in their theology, suspicious.
We know, of course, of many openly liberal assertions made in the past by Karl Giberson and Pete Enns, and we know that at least Enns and probably Giberson as well were asked to leave (as was Kenton Sparks), and Walton who replaced Enns seems more traditional in some respects (outside the question of evolution) than Enns was, but even among those who remain, the suspicion of liberalism has not been dispelled.
In the series on possible modes of divine action in evolution, a series run by Jim Stump which featured a number of “Christian views” on the subject, one of the views presented as a legitimate Christian view, by Oord, was outside of the pale of any historical Christian orthodoxy. I am not saying that Jim Stump is personally liberal or unorthodox, but the fact that he presented a manifestly heretical description of God as a possible option for Christian evangelicals would naturally raise questions.
As for the head of BioLogos, Deb Haarsma, I know little about her current theological beliefs, which she tends not to be explicit about, seeing her role more as a diplomat or organization person than as a promoter of a particular Christian theological view. I understand that her earlier publications of many years ago were more or less mainline conservative Reformed in their theology, but it’s impossible for me to tell from her statements as BioLogos head what she she thinks, beyond “I’m a Christian” and “evolution is true.” So she could be anywhere from conservative to liberal, and it would be hard to tell.
I remember that Ted Davis affirmed a historical resurrection without ambiguity, and that he ended up indicating at least some inclination toward a Russell-type scenario in which God actively steered (albeit in a way science can’t detect) evolution. I also remember that the people running BioLogos at that time (Stump and Kramer) expressed (polite) disagreement with such a traditional, ‘hands-on’ depiction of God’s activity. From the point of a view of a conservative/evangelical Christian who is unsure about evolution but willing to consider that it might be true, the position of Ted Davis would be more tempting, because it had God involved in the outcomes of evolution in a way that expressed classical divine sovereignty, whereas the vaguer, more hands-off role of God in evolution that Kramer and Stump appeared to be championing (I say appeared, because their position was not theoretically articulate enough to count as clear), did not sound like much of a role for the Creator.
Again, I make no judgment regarding the private beliefs of anyone at BioLogos. I’m noting how they appear to many of the “conservative evangelical” persuasion – even after jettisoning Giberson, Sparks, and Enns. Even some Christian scientists who accept evolution, such as Terry Gray (an orthodox Reformed person, theologically), stay away from BioLogos because they think that its theology is shaky. And if an evolution-accepting person like Gray thinks this about BioLogos, it is not surprising that many conservative evangelicals who are not yet sure they can accept evolution would be dubious as well. The fear would be that in accepting evolution they would also be accepting a liberal theology.
If there had ever been one uncompromisingly conservative (theologically speaking) leader on BioLogos – I mean in a position of authority, and not just as a columnist – that would have gone a long way toward dispelling such worries. But none of the Presidents, Vice Presidents, Heads of Web Contents, Head Moderators, etc. have appeared to represent conservative Christian theology (where I’m talking about theological views generally, without reference to evolution or origins specifically). The impression has always been one of theological fluidity (or less charitably, theological vagueness) and of a need to “update” Biblical exegesis and theology in light of modern thought. The organization has always come across as being a bunch of scientists who happen also to be evangelical Christians, and whose main focus is getting evangelical Christians to accept evolution, rather than as a group of orthodox evangelical Christians who accept evolution but whose main focus is to make sure that orthodox theology is not compromised by integrating the theory of evolution.