yes, it should. A PC game experience begins at install and ends when you stop playing it. whether you stop playing it because you hated it or because the DRM pissed you off too much to continue, it doesn't really matter, either way you got ripped off.
now I'm against people who say supreme commander or crysis are bad because of the high system requirements. but not only do they have lower settings to allow all to play, they have this requirement FOR A REASON THAT THE CONSUMER MIGHT CARE ABOUT, giving you stunning visuals, and in SC case, a great new gameplay usability feature for RTSs. now, if either of these games ran like shit on any computer for no good reason other than the developer was too lazy to make it properly, do you think it would have got good reviews? lets see: gta4, xbox/ps3: 98, PC: 90, may not seem like much, but thats the difference between a pretty awesome game and game of the decade.
not even to mention the moral implications.
Reviews pretty much dictate the success of games these days, they have a moral obligation to punish ubisoft for this.
Until the internet is as reliable, cheap and redly available as electricity, this is completely unacceptable.