An interesting viewpoint.
As a d100 user, I am hoping that WotC's actions push a lot of small-time publishers into either innovation in new systems, or to supporting d100 systems.
The impact on d20 gaming does not concern me. The impact on the gaming community as a whole will, IMO, be minimal either way, although if WotC pushes D&D into a more digital model, that will undoubtedly benefit me as an online gamer.
As to the number of people of people yelling, I am dubious. While this site has a good number up in arms, even if none are just engaging in drama for the sake of drama, that isn't a large number in terms of WotC's fan base. I am certain that if this turns into a protracted struggle, the deeper pockets will prevail, and most people will lose interest.