Maybe it's just me but............
I pre ordered x - rebirth, totally rubbish at release, 12 months later it is playable with mods.
I pledged to Star Citizen, can't play it through connection problems and just dog fighting now anyway, so not too bothered at about that just yet.
I backed Elite Dangerous, came in at beta 2. I find that now no offline mode, less content at release, ok, live with that.
My point is, with all 3 games, not once have I even thought about trying for a refund, how many have a big list of steam games never played much, if at all, (I know I have).
Video games come and go, some you like some you don't.
I just move onto something else, and would never even think about a refund.
It's really not a big deal these days, the devs make the games, they do what is best for their business and the game.
In this case they take our input/feedback as a guide, try it this way, try it that way, in the end what will be will be.
I know that my money is still in this game, and I will play it, now or 12 months from now, but I will never, ever want a refund.
But maybe that's just me..........