the problem is that the whole point of the show was her trying to balance her lives. the spy aspect was always suposed to be this secret burden she hid from her closest friends.
then by year 3 they stripped away any non-spy friends and made it this non-stop story arc and mythology. and in doing so they stripped the whole point of the show.
plus there's too many shifts with sloane. since year 3 its been good bad good bad. there comes a point where they need to realize that he's betraying them every march and shoot him in february.