I mean, would you argue that the game isn't worth the price increase? I've always felt that this game with what they gave you for content is well worth a $50 price point, honestly tentatively say maybe even a $60 price point, I mean I do agree you that it's weird that they're choosing to raise the price now, considering that they honestly should have raised the price point of the game easily one or two years ago, but I definitely wouldn't go to say that the game isn't worth the price that they're asking for, I still personally believe they are under selling their game.
Honestly, they could increase the game after the sale, launch the 1.0 release and raise the price again saying that okay now it's no longer Early Access and I think that would be 100% Fair, I've gotten exponentially more hours out of this game than I have out of games that I've paid $70 for