Laminate sailcloth is expensive, panels are big. The unit of measure by which Hobie sells sailcloth is - 1 sail.
It looks like there are 3 open questions:
1. What sailcloth are our sails made of?
2. May any mylar/dacron 2 ply laminate be used for repairs?
3. May whole panels be replaced?
I agree with SM a protest is highly unlikely, but it would be good to know the answers.
I have asked several very good sailmakers whether they could make a used sail better than a new sail by replacing a panel. All said no and HELL no.
The best you could hope for would be to bring it back to an old sail.
So what would be the point of not allowing justifiable repairs, even if more than one panel is replaced? You would never get something that would be as good as a new sail from Hobie.