True. Early game is also a lot more fun than mid and late.
That's because almost all creative effort within the last year was aimed at the early game. Hence the addition of all these missions, of early craft, of the Menace family, and so on. Early game was practically remodelled whole, several times. And it's still happening.
Yes, I agree that the late stuff deserves more love. And I'm sure it will happen, since there are solid plans for later game. But it must be made and coded, and up until now it probably hasn't been priority.
As for the multi-path model of tech... I do not have a strong opinion on this one, but I understand it is controversial. On one hand, we have the completionist approach, which is generally a good thing to have. On the other, there are many games where you need to select a path at some point and they aren't really criticized for that.