This is a real problem, no doubt about it, and definitely something that happens. And it would not be fair to throw all of this problem on science journalists themselves, because the researchers definitely some times contribute to exaggerated claims and optimistic speculations in their public statements.
Tour often spends a lot of gas making it seem as if the origin of life field is somehow unique in this aspect, and I have to say I consider it misleading when he does so. But the problem goes waaay beyond the origin of life field. You can find similar behavior in every scientific field, from Tour’s own of synthetic organic chemistry, through medicine, to engineering and physics. There is no shortage of news and popular-press articles on topics such as the possibility of future cures for cancer, miraculously enhanced materials and nanotechnology for water purification, or what have you.
You can’t get a good sense of this simply by reading popular press articles and university press releases designed to advertise themselves, but there is a very vigorous (and brutal) debate within the origin of life field between many different “camps”, and everyone are much more excited about their own ideas and research, and highly critical and skeptical of their competitors. But you won’t get that impression from hearing Tour’s sermons, which seem designed to leave the impression that it’s all just one giant circle-jerk of wishful thinking with standard scientific debate somehow completely absent.