I would also be interested and I guess there are several apps that can record the screen as a video. I remember times when players started to record matches and put them here and/or on youtube. Could you recommend an app? I don't know what the reason was why this stopped. I remember the idea was that players were interested to see how their pvp defense behaves against other players. I don't see a reason that this should be forbidden. If you/someone has time, search through the forum for these old posts!

The real question is: Do we really want to do that? Yes, it would be great to show bugs, strange situations, glitches etc. Indeed this could help the devs to track bugs etc.! BUT it would be a crazy mess I guess, at least in the beginning when people are interested in doing that and record a lot of videos. I mean I could record almost every pvp match then (and in many other parts of the game too), because it has bugs. Same holds true for almost every Gauntlet battle because of the impossible talisman combo bug etc.

But yeah, why not?