I think that is the goal, but for various reasons are not actually usable (not good enough, not supported by things you actually need and have no control over,

I think that is the goal, but for various reasons are not actually usable (not good enough, not supported by things you actually need and have no control over, etc) I think part of the problem is unlike the cpu, the isa is not actually available fully. You have to use a blob that does sekrit majik stuff to use the card fully.