In that process though, you’ve had someone at Apple verify that your issue is legitimate, and that issue has probably shown up in a place they care about (DTS metrics)

Two things that simply filing a feedback issue doesn’t seem to reliably do.

I’m suspect a concerted effort to get developers using their TSIs for bug reporting would backfire (stop refunding them? remove the program?), but I think it’s an interesting idea given how cheap the TSIs are for developers.