Nightcrawler and Mystique

In the comics, Mystique and Nightcrawler are mother and son, with Azazel being the father. I get it – it isn’t essential for the plot at the moment, but this issue could have been addressed, pretty much like Quicksilver and Magneto in Days of Future Past. And it should be addressed, because Nightcrawler is as blue as Mystique is, and because he has the same powers as Azazel in First Class.

But, no, it isn’t even mentioned that they are both blue – I believe this could have made an awesome moment. And it would have answered another question: Why is he introduced in the way he is, being saved by Mystique?

One more thing that seems weird about Nightcrawler is his ability. In the comics, at least, he can teleport anywhere he can see. However, this isn’t the case in X-Men: Apocalypse. I understand what happens in the helicopter, since Striker could have something in place in order to prevent the mutants from using their powers.

However, this isn’t the case during the cage fight. Am I supposed to believe that electricity can prevent Nightcrawler from teleporting out of that cage? Or am I supposed to assume that it’s a special kind of electricity, one that prevents teleporters (and just teleporters, as if there are scores of them) from using their powers?