In this case, they would be answering a faith question, so of course they answer it on the basis of their faith. But when you ask them a science question, you should expect them to give an answer appropriate to their science rather than one appropriate to their faith.
If you were to make it very clear that you were asking this as a faith question, they would probably word their answer very carefully, and you would not be satisfied with that. But they need to answer it carefully, because real life experience shows that what you say will be taken out of context and misconstrued as representing a statement about science.
And here you are taking Dawkins’ personal opinion as representing a statement about science.
Dawkins might want it to be taken that way. But it is, nevertheless, a statement of his personal opinion. Most of the scientists that I talk to will avoid saying the kinds of things that Dawkins says. They consider Dawkins to be fundamentalist atheist. And they mean “fundamentalist” in a pejorative sense.
We live in a world where many religious fundamentalists are shouting nonsense. I think we can tolerate a few atheist fundamentalists giving their opinions.