I don’t play on the seasonal realm, only on Eternal. For me day one of the Pit was “end game” and I can’t consistently push it past the higher 50s with my preferred build (meteor/firewall sorcerer). There is nothing I can do aside from playing a different build to overcome that wall and I don’t want to do it because I don’t find any other sorcerer build or any of the other classes interesting.
The absolute minimum Pit tier required for fully masterworking gear (which is 61 atm) should be doable by any fully optimized build/class combination, period. Anything short of that is contrary to the “play your own way” promise that was made when this game was first announced. Nothing else to be said on the topic.