I don't want to be harsh, but I feel it's a scam. I'm really looking for people to enlighten me on why to follow this at all.
I get it you are accustomed to the Steam's idea of Early Access, where you make a single cash injection during the development period and gain access to the game for life, but there's only a handful that make it past 1.0 with any new tricks or anything considered improvement. You should just wait till it's out on Steam and decide for yourself if you should buy it, for now you don't even have to pay and get freebies from the dev if you are curious what's up with the development pace.
What I don't get is why did you start this whole rant? Too expensive for your taste? Wait till it's more fleshed out in your opinion, why bring it up now?
Tired of the whole "Raid location, loot junk, sell junk, buy junk, rince, repeat"? This is an early demo, the whole idea of subscription based support is that the dev can pay rent, eat and fund his development while you get complimentary goodies.
Your whole behaviour is kinda like waltzing in on the construction site and asking why the F is it full price for a bare bones house/flat when you could buy a completed one from a few years back cheaper. Just stock up on patience and hide your wallet, you won't lose anything if you don't want to support it before it's gone gold.
Stay chill buddy