HDS doesn't like unhappy customers... though we do have a "black list" of folks who are off their meds and refuse to get back on them.
They are cosmetic issues that are just that... cosmetic. They don't effect how the light works. They don't effect the beam. It is like a spec of dust on the reflector. It was calibrated with it there, but it can drive some folks crazy to the point where they clean it (read: destroy) the reflector... like taking a belt sander to a beautiful woman's face who has a mole that we don't like. I've seen it (the dust thing, not the belt sander, but you get the idea).
Too many complaints on something, and it can get dropped... like Cerakote or clip holes in heads, or it can let us know there is a real problem like the cancerous bezels of times past which while cosmetic, was pretty freaking fugly... but in a cool way if you are in to that sort of thing.
Either way, let us know if you see problems like this on the sapphire lenses. There are a new batch with the same light transmission as the UCL (i.e. no loss compared to the UCL) which we like as that makes the light just as efficient with either lens.