Maybe*, but that doesn't change the fact that +1d4 gives too big a bonus... it becomes a spell that nobody will not take and cast as often as possible, it's incredibly useful and edges out almost every other 1st level spell. And rolling that extra die actually wastes more time if it's forgotten at first than just getting a +1.Yeah, but it's easier for Mialee (and Lidda, and the DM...) to tell that Tordek is or isn't applying the bonus if the bonus is a physical object on the table.