We are simply talking about a different philosophy in game design.
It is also chiefly a different philosophy about marketing.
After a number of such "early alpha" games that I've been thru, I'm now perfectly convinced that every such is a sucker bait. Since Steam allowed us to put on ignore games, I've been steadily putting each and every "early access" game offered on ignore. I'm not even looking at pictures, tags or anything: early access->ignore. I wish there was a global setting for Steam to let me ignore in advance any of those. I'm not even looking at a game unless it is:
a) released as a complete game
b) reviewed by a magazine/site that I trust (there's not many of those left).
Now, even with meeelions of cash, the only thing that changes is that it's probably not an intentional scam, or amateur hour. It still does not guarantee that you're going to see a real game come out of it. Many a studio with lots of funding managed to crash, burn, and never release a full game. Ergo, I'm not wasting (unlike a friend, who put three figures in it) any cent on that type of development. Last time was EQ:Landmark, which I trusted to be nearly a beta since they promised the closed beta for march, and who is, a year later, barely a feature semi-complete alpha.
So, no. That dev model is a piece of shit that needs to die in a fire. Maybe one day, SC might be held as the exception that in fact, confirms the rule, but it's not even to that point. Currently, the early-alpha model is a pure waste of money. Even with Chris Roberts behind it.