It's been a while since I watched this season (or at least it feels like it!) and I'm still trying to parse exactly how I feel about it.
I think I tend to agree with the sentiment that it was too many episodes with not a lot of story and could probably have benefited from either being a few episodes shorter this season, or gone more of the Daredevil season 2 route with essentially two consecutive arcs rather than what we got, which often felt a whole bunch of arcs bundled together and stretched out paper thin.
Again, I'll probably have to give this a second look to properly digest but I remember coming out of the last episode thinking "am I crazy, or was Jessica the least toxic person in her life this time around?" Yeah, I know the new neighbour/boyfriend turned out to be a healthy influence, but the two people who seemed to care about her the most from last season were just horrible to her this time around and for utterly selfish reasons.
I'm not saying they shouldn't have gone that route, just that it's interesting how they went about it. Season 2 Trish almost felt like a deconstruction of season 1 Trish; whereas before she was pretty selflessly dedicated to Jessica's well-being and only a little insecure about being in Jess's shadow (in her own mind, if not outwardly to the world) which mostly just manifested as living vicariously through her and her abilities. Season 2 Trish is like the Mr. Hyde version of her. Insecurities dialled up to 11, almost entirely self obsessed and heedless of any other consideration.
I do wonder if what we're seeing between these two is a cycle of behaviour where first one flies off the rails then the other.
I think part of the question for season 3 might be "do they help to keep each other return to the stable centre each time, or is their relationship responsible for the inability for any one of them to remain stable at any given time?"