No, I don’t think it’s an issue. Lemmy certainly doesn’t need most of Reddit to migrate. But if the number of users is a lot less, there will also be much less content. For me, the ideal scenario is to have a decent numbers of users, but nowhere close to Reddit’s (I’m almost totally sure that it won’t actually replace Reddit for the general public but I’m just hoping for enough users to make it a nice community with enough content).