Mercy invincibility

SAY, you know what's cool? Garden ops mode! Hang out with friends and shoot zombies.

You know what is more literally cool? Yetis. 

You know what's not cool at all?

Having your entire team killed on wave 10 of CRAAAAZY garden ops because you've encountered literally the only super boss wave you've seen since the beginning of the game in February, thus ending your run and wasting everyone's time and items simply due to the fact that yetis are dashing around freezing people as soon as they get revived and there is absolutely nothing anyone can do about it.

So yeah. That just happened.

I'd like it if, at least in Garden/graveyard ops mode, anyone who gets revived gains mercy invincibility for a short period. If that's too much, then just make them immune to status effects like being frozen or stunned or set on fire or what-have-you, or make it just count for self revives.

Because really that last round wasn't so much a game as controllable helplessness. I get that crazy's supposed to be hard, but you should be at least allowed to move.