This needs to be stopped, and immediately.

[SDaemon]

Well how are you going to distinguish the afklers that watch the cutscenes from the new players that watch the cutscenes?

If you watch all the cutscenes in Prae then you are pretty much afk from before first boss to endboss. Never fighting a single boss when the group goes on without you.
I´ve seen people do this.

Because obviously new players wont sit in the cut-scenes for obscene periods of time. And you've seen it because people want to rush to their bonus, which is their choice ( a selfish one but their's nonetheless). Usually they watch the scenes as intended and then the next time fight the bosses. Its a sad and flawed outcome due to human nature but its the best they can hope for atm the way people's minds are set.