Well I suppose so. Seems like a bit of an edge case. Check everyone on the server, or everyone in the chunk before generating the enchant perhaps? I just can't imagine a scenario where someone is really going to desperately need a plain moderate inner light enchant. If they do need one, maybe they should try walking 5 feet, BECAUSE THAT'S WHERE ONE IS. I didn't really ever plan on playing multiplayer, and while it was amusing at first to run into moderate inner light enchants in every single stash, it has gone far beyond amusing, past annoying, past rage inducing, and now whenever I see one I just polish my shotgun, which I have named Bessie-Jane, and whisper 'soon, my darling'. The flying baby elephants tell me this is normal. *twitch*
And on an unrelated (and more sane) topic: do secret rescue mission NPCs get health increases to balance them as enemy tier increases? I just came across a secret rescue mission, and when I found the NPC she only had 110 or so HP. I really tried to save her, but between projectiles and bats there was just nothing I could do. She could only manage a few hits before dying. I'm assuming NPC damage is balanced around the assumption that your character will have used upgrade stones at least a time or two, but we can't buff NPCs...