#No, the tag isn't preeminently super useful or high traffic, no that doesn't mean we should burninate it.
Somebody with a good amount of rep thought the tag fit their question better than existing tags enough to warrant creation. That's a feature available to all users with over 1.5K reputation, because the network's system is to encourage users to create lots of tags and there is almost no cost to having additional tags.
Getting rid of tags1 takes diamond moderator action and generally requires a meta or series of metas of the topic in order to not be a massive abuse of power. We only do that when a tag is a problem. Not only is this tag not a problem, but it seems that no one, yourself included, had any reason of or suspicion that the tag was or was causing any problems. Given that, not only do the reasons to get rid of the tag not outweigh the reasons to not do so, but even if there wasn't a significant downside to going through tag deletion in general we still would have no reason to do this.