I don't like proposed changes to zac (summer update)

new zac ult flattens him out like a pancake, immune to crowd control, and then he bounces off carrying caught champions a distance.

First off, I'm assuming my hit-box remains the same, but I am also completely immobile for about half a second before the rebounce, so hurray any scenario when you are behind or otherwise squishy.

Secondly, on low latency the only people I am going to catch are the tanks, which want to be carried into my team. I dislike my ultimate having such an unfavorable outplay, which I have very little control over. What do I do if I catch a tank, bounce them further into the enemy team? Then they peel and I die because I'm isolated.

Third, zac relies on his mobility during his ult to avoid being focused, to pick up blobs and proc e, and to split push / as an escape tool. He is now basically another amumu, a good in, no out. In fact he has less out that amumu now.

Finally, I play zac support in plat 1 and I leverage his disruption to build dmg early. His ult is effective when utilized with liandry's torment as it proc's repeatedly, and his mobility allows him to chase, pick up blobs, and repeatedly proc e for an extended burn. Now that is completely unviable.

Thanks.