I understand that. But if people don't press spacebar because they don't want to, for whatever reason, it's still pointless to tell them to do so. It is mega annoying to have to read the press-spacebar-flame-spam when it's clear that one member simply wants to see the scene. He won't spacebar because he doesn't want to, not because nobody told him to do it.
He should not want to with his guildies, not on my time.
A HM flashpoint is done 100 times already, not to be fun anymore. Everybody is there for comms/gear/weekly/daily, not for fun. Fun is when you do it the first time in story mode.
This is not about how a rebel one player might be and how she/he is more right than the other 3. If spacebar is asked, you WILL use it, or we find another that will. Don`t like it? Lose the attitude.