I'd put it in about the same place as the question of whether people ever pee in TNG - never explicitly addressed, but there are very safe assumptions to be made and it's not particularly important.
Ok - be honest now.Who didn't tear up a even a little with what went down in Legends?
I got a little choked up, but I was annoyed by it at the same time...
The final battle with Metallo was like a CoX flashback.
Personally, I was disappointed by the lack of Uncle Sam, Human Bomb, Doll Man, and/or Phantom Lady. Seemed like a waste of an Earth X opportunity. Cheery Snart was disturbing, too. The crossover started out well, but ended up just kinda alright.
I was sort of hoping that when Felicity said something about a bigger gun that Superman would be making an appearance.
There were a few others they could have had as back up - Superman - Jay Garrick - either would have made it too easy or the actors were not available.
Or they simply hit the limits of their budget.
Jax playing Jax...
I wonder why Franz Drameh left? They could have had someone else show up as the other half of Firestorm after Vitcor Garber left.