Equipment attached to the launcher is not a reliable visual indicator of whether a system uses guided projectiles or not. An AT4 fitted with an AN/PVS-4 has "added equipment for targeting", but is unguided. A 9K32, 9K34, or 9K38 MANPADS is guided, but is aimed with iron sights. This also means that unknown or fictional equipment also cannot be reliably categorized visually, even if it hews to real-world design language.
In any case, I don't see the need. The average uploader, tagger, or user doesn't know or care, and shouldn't be expected to. Users who know and care enough to tag or search for specific systems will do so. I suspect the middle ground of users searching for the theoretically more specific but practically still very vague distinctions of "any launcher, of any description, for any unguided rocket" vs. "any launcher, of any description, for any guided missile" is very slim indeed. I could certainly be wrong, and there could be a need. But I'd like to see it demonstrated before someone has to clean up every post tagged with rocket_launcher, bazooka, rpg, missile_pod, etc., create wiki pages, and maintain those tags in perpetuity.