Am I the only one who hates the era of anniversary era battles?

I gotta agree, even as someone who spent a lot on the characters to get them 7* and relic'd, these era battles are horribly balanced. They must expect that even at the g12 tier, that you have maxed out and fully optimized 6 dot mods. I've got proper mods on them all but not fully maxed nor fully optimized and despite being in the relics and 7 stars, the g12 fight was a pain, and then the g13 fight I was entirely obliterated in wave 1. Who balances these and tests them? This just feels like a way to make people regret they spent anything on the era characters when they can't even get the rewards from the era battles.