WSBK bikes are more forgiving than MotoGP

Today I was watching wsbk race and it was my first time. The first thing I noticed that bikes were much forgiving. Bikes were moving so much and yet they were throwing on kerbs without any fear and rear was sliding then gripping without issue.

And in MotoGP if anyone made similar moves they would have a huge high side.

MotoGP bikes need to be muscled around more despite being way lighter, lot of riders suffer from arm pump because of this. May be due to aero.