I know Bungie really want to move to a seasonal model, and although I wish they didn't as I've already missed some content that I will never have the opportunity to experience, I know I can't change their minds. This is most likely a solution to the fact that the game file is huge already and they don't want to bloat it any more (personally I would buy a dedicated drive for this game alone if file size is the problem), but this isn't a viable solution for many users, especially console players. I really enjoy the Sundial, I know a lot of users have grown bored of it, that it's gone stale, but it's a menagerie-esque event that I love using to kill time when I've run out of things to do. So if they were to keep something around from this season, I'd love it to be this.
Sundial and Vex Offensive are terrible. Sundial is more miserable when people don't bring the mods.