It blocked a part of the bubble from everyone not interested in playing in the Thargoid war and with that they added an imperative to it: Play this, or the infernal engine we've created will slowly steamroll the entire place. A part of the total freedom of blaze your own trail, go where you want, when you want, how you want died that day.
Ah, I played Thargoid war for a few days, then got on with murdering Lawfuls & stealing - As it would take 10 years plus for the Thargoids to make any worthwhile incursion in the bubble, the "war" affected me, and my group's play, not at all.
I often get the impression that the already dissatisfied will clutch at any straw to declare their discontent with the game. We just got on and continued play as normal.
ETA: The Thargoid "invasion" has never had any real threat attached to it, but has provided a continuing distraction for some. Frontier are too timid in their handling of this game, and too concerned by the outcry by a few players, to put an actually destructive scenario into the game, so we get an ineffective, almost sterile, "incursion" to provide some relatively safe conflict for those wishing to participate.