That's all well and good, but a lot of those lowbie characters are new players to the game, so they might not even know that there are story mode versions of those flashpoints. And they're not likely to know about what high level players are going to expect of them. The problem is, everytime I see someone ask people to hit the spacebar, it's not done in a polite manner. It's always "SPACEBAR" and nothing else. No explanation. Sometimes you get a 'please', but most times it's just a demand.
Prior to these changes, at appropriate level, lowbies could queue for Esseles/Black Talon and be paired only with other lowbies. Now when they queue for it they get paired with high level players.