They don't just exist in my canon as a nod to Dr.Who, but as actual Decepticon drones and nameless's that have took that altmode. (Also it'd make sense for Vec-Tor to be a Timelord or something.. Also I think I mentioned this like a billion times but, my Ultraverse actually does have a Vector Prime.)

And also, it just makes sense as Jazzimus literally wields a Lightsaber as one of his Weapons of Choice. (and I made a Sithcon.)