If Drake Maye is struggling to pick up the offense and you don't want to play him because he doesn't know what he's doing yet, I can understand sitting him.
But sitting him simply because you are afraid that he's going to get pressure on half his drop backs and that's somehow going to shatter his confidence is where you lose me. If that's the case, he probably isn't cut out for the NFL anyway. Playing against an NFL pass rush is a huge part of QB development. Some can do it, some can't. Better to find out sooner rather than later and coach him/scheme from there...
Williams and Daniels are both playing behind shaky O-Lines too, but they're taking their lumps and gaining experience doing so. Maye's watching film and getting a few reps in practice with the 2s and 3s.