I didn't follow Mahomes that much, but really liked Watson. Watching him this preseason has been brutal though. He really hangs onto the ball much too long. With the Texans Oline, he's going to get himself injured again.
I also agree with the takes regarding the Bills...particularly McD...not being in a position to draft a QB in 2017. He was just learning about the team they had...and was in no position to decide on a future QB. Whaley was on his way out and Beane on his way in. So...I cannot classify not drafting Mahomes or Watson for that matter as a blunder, but rather lousy timing.