[Baltan II]

No idea what the complaint here is. That's part of the game. You see an unfavorable matchup, you get out of there. Predicting switches and switching are why entry hazards, Baton Pass, Roar, Shadow Tag, Pursuit, setup moves and other significant aspects of the game currently exist. You either learn to deal with them or avoid gameplay that necessitates them.

For example, one of my problems with the April Friendly, besides my own inexperience, was dealing with higher-tier Pokémon I wasn't used to encountering while having measures for ones I would never encounter, thanks to the all-Kalos rules. I didn't bitch to myself that it wasn't fair that people were using Mega Kangaskhan, because there was no reason my self-imposed rules should have any bearing on the tournament's guidelines. Instead, I decided to bear with it, take my wins and losses as I could and, though I failed to battle every single day, I at least won more than I lost. Now I've learned more about the changes I should consider in my team to better survive the next event.

TL;DR adapt or die.