C'Thun broken?

I know you’re supposed to get out of the acid in order to survive in C’Thun’s belly, but that doesn’t work, you die no matter what.

Is there a way not to die?

did blizz bork legacy content again?

I’ve done c’thun a few times recently with a friend of mine trying to get transmog gear and we quickly discovered that when the boss dies so does anyone that’s still in the belly. We just had to wait a minute to dps once he was vulnerable to make sure we were both up top