I think the story had no chance to gain traction. It should have been a longer story where there was something else to explore like another long-dead trapped ship or alien object, to give the characters the chance to work together in a coherent way.
Totally agreed. There was no real mystery, no real conflict, no real problem. Just two ships meeting, the characters meeting, and then the characters parting. No one learned anything valuable.
The only thing I could figure is that this was set-up for a story maybe a year down the road, where we needed the opposite sex characters introduced now so that when the two crews meet again they've had time to process the multiverse. The appearance by Mirror TOS Kirk and TNG Geordi might mean a "Crisis on Infinite Earths"-style story is in the offing.