There are many reasons, as has been stated, why a clutch it not included:
It will not sell. The costs to re-write the code, and then create the pedal, and do the research so the pedals work together in a realistic manner (gas/clutch) would not be cost effective for the marginal at most audience that is willing to buy them.
If they were garunteed to sell 20,000 units of the new pedal/wheel it would work, but they aren't, and it's only a niche market...so the cookie crumbles.
It will not sell. The costs to re-write the code, and then create the pedal, and do the research so the pedals work together in a realistic manner (gas/clutch) would not be cost effective for the marginal at most audience that is willing to buy them.
If they were garunteed to sell 20,000 units of the new pedal/wheel it would work, but they aren't, and it's only a niche market...so the cookie crumbles.