It does of course prompt an interesting debate in terms of how far back it is reasonable to expect a game to be 'fixed' when issues like this occur - especially given that older games are now easier to buy (due to DD) than they used to be as there is no need for stores to maintain a physical inventory of them. Online multiplayer servers getting shut down may give us some pointers, though.
The other interesting thing is the rise of sites like gog. I know they focus on games that are no longer compatible with modern OS's but they also tend to be games the original developer has long since stopped bothering with and so most if not everything they bring out (I could be wrong) is DRM free.
If places like this continue to thrive, you don't know if it means we'll get to access more and more games without DRM (not just old and/or indie games) and so free of some potentially limited lifetime or whether it'll help developers realise it's worth supporting older titles in their catalogue because there remains a keen audience.