Worked out fine the last time they did it. Also omnipotent beings are all over Star Trek and can take any form they want!I just took the scene as being similar to Odo seeing TOS klingons and Worf's response being 'we do not discuss it'. But if the fan response is anything to go by we're going to get a 3 episode arc in some future series about how discovery klingons became TOS klingons who became TNG klingons.
It's one of those moments when people have to remember they're watching a cartoon series that features an omnipotent being in the form of a Koala and just go along for the ride.
(I really don't like the koala. Please, future showrunners, please please please take Star Trek more seriously. Even in comedies.)