Feedback is great and I try to do so when I can, but you don't necessarily pay for an early access game for that privilege. You pay to play it because it looks interesting and you don't want to wait.
Plenty of EA games raise their price when they are feature complete and officially released,but it says on every store page that it may never make it that far and to NOT buy it if you are not comfortable with the game as is.
An insane amount of user reviews are piles of useless shit that not only do not understand this, but will arbitrarily give bad scores for whatever reason they please.
I can't say I loved all of decisions that the developers have made, but it's still a pretty unique game that has received a ton of patches and content that I enjoyed.