I feel like they're more likely talking about Jeff Roiland's (edit: creator, one of the main writers, and voice actor for most male characters (including both Rick and Morty)) abuse allegations, after which they canned him as writer/ voice actor and the show kind of lost it's flair.

Yeahh the Szechuan thing kinda tainted the whole show for me. It was a dumb bit that went too far and the cringe fallout still lingers...