I got the knife back today. SOG's solution was the same thing I could have done myself, which was grinding the back end of the lock bar so it is round and therefore the "corner" doesn't stick out. Now when it is closed the lock sort of bulges out. It still doesn't look too bad when open because there is a small length where the lock bar goes past the release cutout, so the rounded part only just barely becomes visible from the side.
I guess it works, but I was hoping some part like the blade or lock bar would be replaced so the whole thing looked new rather than mitigated. I know it's considered OK to "repair" things rather than replace them, but the knife was all pristine and untouched, not some old overused junker I would expect a "let's see what we can do to save it" treatment for.