Kawhi's ball handling is where it should be. Those moves you posted are high school level, two right-to-left/left-right crossovers and a double cross, moves that every top 1000 point guard does multiple times again. I can promise you I did those moves 150 times each in my 4 years of high school. The main criticism of Kawhi offensively is his ball handling, he doesn't really breakdown his defender, he tries to straight line drive past them most of the time, or shoot over them.
Klay Thompson is shooting 37% through 26 games, bringing his career percentage down to 41.6%, a number through 400 games. And you have to take into account his 37% this season is after his terrible start. Anyone can understand why that isn't changing.