Patience, it's probably a good idea to hook the small, indie studios at first. Hopefully when/if they get larger they won't forget who used to buy their games
True. Shall we remember how DOOM was launched ? Linux didn't exist at those prehistoric times, and they launched it as shareware. I really see shareware in the same spirit as open-source today. I would figure that because of these shareware roots that ID now release each time for linux AND make the old engine available on open-source.
Those guys have really understood how the software will evolve within the next 10 years. Epic has understood just a little.
Unfortunately this won't work like this. This way Linux always gets the old titles, the aged titles. So the ID way helps us not to make Linux gaming stronger. That said neither does the Epic way.
Concerning ID, they make available for linux their latest titles and open-source the older ones.
So, ID really helps linux gaming. However, I add to your comment that ID-only support is not enough for making linux gaming stronger.