That's not just Kyler though that's Kliff's offense. Remember the Raiders preseason game the first year of KK when the ref didn't agree with the earlier NFL ruling and kept calling false starts on Kyler for simulated snap by clapping but not getting the ball? That was all Kliff he said they'd literally invited the NFL to camp to review it and the NFL did and said it was ok. That's Kliff's offense. Murray likes it too but a big reason Kyler hasn't taken snaps under C much in the NFL is Kliff doesn't want him to.
I agree it's a big reason for false starts and all the bad snaps and it's why we have a hard time drawing guys offsides and getting the call, because they're afraid to do fake claps because the ref might call it on us, or someone might jump or snap the ball early.
I would agree to disagree with the clapping being KK's offense. Your post intrigued my interest to watch some videos on Youtube. I watched Patrick Mahomes at Texas Tech, Baker Mayfield at both Tech and Oklahoma, and Kyler Murray at both Texas A&M and Oklahoma.
I didn't see Mahomes or Mayfield at all clapped for a snap at Tech. Mayfield started to clap at Oklahoma but not exclusively. He still alternated hut and clap even in the same game. Murray clapped almost all the time at Oklahoma. However, he did not at Texas A&M. Based on my observation, I would tend to believe the clapping is first the Lincoln Riley thing, then became a Murray thing. Riley introduced the clapping, and Murray took it to another level.