Expecting people to know the game well for lowbie flashpoints is both unfair and unnecessary. As someone else said - you shouldn't have too much of a problem even if they stink. And if they do stink and won't listen to kind advice, just quit the group. It's not like it's your class quest or something.
It's not just the lowbie flashpoints this happens in but also HM flashpoints. I have noticed a recent influx of players queing for HM's with a mix of level 30ish gear, Tanks using a majority of DPS gear, and players using stats on gear they shouldn't be.
At level 50, you are granted 99 Tionese coms and a full set of MK-2 Recruit gear... I really wish these players would take the time to pick them up.