No, these moves can't miss. Sorry for the short answer, it's just that there is really no way to actually test it because it may just keep hitting due to luck, and my other sources (Bulbapedia, Serebii, etc.) don't have anything on it either, so this is more of an inference, but if it says it can't miss, it probably won't miss. Plus technically, "affection" raises evasiveness, so... ya.