Azir Ultimate & Blitz Crank Area of Grab

When azir summons his ultimate, you cannot flash over them. I'm unsure if this is how it should be, but if it is, fair enough. The second one is blitz cranks area of grab. (Same thing applies to thresh) Their area of grab is totally unfair, I even slowed it down to .25 and you can see I didn't get grabbed yet I get pulled in.

It's bad enough blitz crank is beyond broken, but in my honest opinion his area of grab should be much smaller, based off his kit. Also he definitely needs a damage nerf. I've been grabbed by his hook and dealt 900 damage + his knock up dealing another 900. Totally unfair/weird...