You know there was time when game developers paid to beta testers, right?
In my opinion anyone supporting these kind of practices needs to get their heads examined so they can see how this kind of stuff will destroy future gaming. I shiver at the thought more and more companies would follow in RSI's (and Blizzard's, with their recently closed damned auction hall) footsteps.
Also before writing something like this you should think for a bit, take a look about development of marketing in game industry, things that was appeared like possibly fatal proved to be best practice. Honestly, how long have you spend thinking about it before hating it? Yes, it is somehow unnatural (for now, but also working pretty well). Microtransactions, alpha testers paying to you (as game dev), game digital renting (steam lately, anyone?). From PoV of destroying game industry and mostly market of SP games arn´t you more concerned about possibility to rent steam account to up to 5 friends?
How directly is RSI practice destroying game industry? Game industry will be destroyed once there will be no money income, RSI actually managed quite opposite. If RSI will fail with they game dev then ppl wont do it again, but you hate it, so where is the problem, self solved... if they will manage to do what they promised then good for them. If you dont like it, dont buy it, if you dont like that ppl are buying it and that RSI generating massive income... well, then you should think about yourself. If you are so concerned about possibility that RSI basically stole money from ppl and are not going to deliver what they have promised, well that will wipe out that kind of marketing in future and players will be finally more careful about their investment. It is everyone decision to support project in development and always risky.