I think the final season managed to convey what it wanted to do well enough that I did not mind too much when it failed to do it well.

My issue with Samaritan is more that the show promised this brand new status quo with the season 3 finale and season 4 premiere, where the heroes would have to be smart about how they worked. Like how John could not just go on a one-man rampage cause it would raise suspicion and he had to hire someone to create a situation his assumed identity would make sense to get involved with. But they pretty much dropped that by the next episode.