As a Xin Zhao main with 500k mastery
I have no idea what the boards is talking about with Xin's fantasy being taken away by Camille's ult.
Xin Zhao's fantasy is not to somehow turn a teamfight situation into a 1v1 vs the enemy adc using his ult. Xin Zhao's fantasy is literally being able to win against multiple opponents, against all odds, and come out on top. An aoe disperse ultimate that does massive damage and gives him armor and magic resist for each enemy struck helps him achieve that fantasy moreso than Camille's ult ever would.
Yes xin is not in the best spot right now. Yes a rework could maybe do him good (though i would argue he only needs some VERY minor changes). But saying that Camille is going to do xins job better is just false.
When i charge into the enemy team and ult+flash the enemy backline into my team instantly killing them people will wish i picked Camille.