There's definitely a way to put a track bike on a direct drive trainer, because that's what they've hooked their BTs upto in these photos, but I don't think it's mainstream, or the teams are playing it close to the chest because I sent Anette Edmondson a message about it and she never replied.
https://www.instagram.com/p/BIT2WPpg...-by=nettieedmo
https://www.instagram.com/p/BHCA92dg...-by=nettieedmo