I love Hyperspace now, but I don't think the devs had some brilliant plan to shape the game.
I honestly think the first question was, "Which ships aren't moving off store shelves? Let's give the players a reason to buy those."
Then the devs asked, "Does this make an interesting meta?" and tweaked it from there.
I suspect TIE interceptor, TIE defender, and Hound's Tooth were not over-produced in the same way early 2.0 expansions were, so they could stand to wait until next season.
Regarding Guardians of the Republic, FFG had already sold what they needed to. ARCs and Aethersprite expansions (I'm guessing) didn't sell as well because of the surplus of 1.0 ARCs, and because so many people bought multiple copies of Guardians. Removing Torrents encourages players to buy more stuff. It's not fair, but it's what FFG needed to do to be able to continue to support this game.