>>55344956She decided that Dynamax Togekiss was more worth it than Mega Garchomp so if she would've won with MegaChomp that is still on her as a trainer.
I think she might actually have been right in dynamaxing togekiss considering Garchomp wasn't able to deal non-resisted damage to Lucario and regChomp couldn't beat Lucario even after it was standing on its last legs due to its fight with Togekiss.
TL;DR: Dynamaxing Togekiss was perhaps better than Mega-evolving Garchomp, even if it wasn't, it still is on Cynthia's capabilities as a trainer to choose correctly on the heat of battle. Also, Ash only had one gimmick too
