Sorry guys, its a snowboard, not a mercedes benz. Scraping off the bubble is fine and will help reduce abnormal wear though it will show at the end of the board's life. The other dent is not large enough for epoxy, is not large enough to worry about and therefore ptex will be fine on it for now. It will in no imaginable way make things worse.
This is a very, very minor ding and not worth getting this worked up about. Small ding, easy fix, keep riding.
This just makes no sense. The dent is not large enough for epoxy, but you suggest using Ptex on it!? What good would that do???