They are, but only if you try to resolve the conflict - that is, if you aim for philosophical consistency.
I could believe that a unicorn magicked my lab into existence, and that elves and fairies make and sell the apparatus, and trolls with huuuge rubber stamps make the reference books I use.
I could believe all that, and still do perfectly good science in my lab! Make novel and correct discoveries, and everything.
But if I aimed scientific method, and modern epistemology, at my religious beliefs it’d become apparent that they’re wrong.
So what’s required to have both “scientist” and “religious” bits flipped is double-think. Nothing new, and it’s not surprising that scientists are as prone to it as any other demographic.