I think there is some argument to be had on the basis of trying to support
hardware that is hostile to free software. We don't support non-free graphics
cards when there aren't free drivers. Why should we do the same for graphics
cards? Building for the lowest common denominator is probably not the best
idea.
Unfortunately I'd also have to argue that you need to be conscious of the
fact a large percentage of new users don't have hardware thats friendly to
free software. The problem is a bit more complicated though as the free
software friendly hardware is also hostile in certain ways (proprietary
BIOS).
I guess what it comes down to is Trisquel should stick with what can be
maintained and if the resources allow provide a secondary 3d environment. I
think eventually Trisquel will be forced to deal with this issue.