People not rolling in duties - can we do something about it?

[Neophyte]

If something IRL prevents you from rolling, yes: that's why they set it like this. But if you are waiting on purpose then to me it's another story. In the meantime, for example:
1) People might lose gathering nodes (they'll come back, but they might have something else to do);
2) The raid group of somebody could get tired of waiting;
3) Your play-time might be almost finished (so you won't have time to try again, check retainers or do whatever you were planning to do);

It does affect other players, so I don't think it should something accepted or considered ok.. It isn't even a matter of people checking the stats on aryala as they are doing it even now in weeping city for the minions ...

And how do you tell if someone is afk because he needs to or if he's afk because he wants to? You can't anyway, so why bother?

Those 3 reasons could be used to reduce every trial duration to 15 minutes, too.
I mean, maybe there are people who don't have the time for wipes and need to go raiding in 10 mins, so they can't take the penalty or they have to go to bed soon and still have to do ex roulette to cap for the week, but are stucked with a wiping group in A11.

Tough luck. Don't queue for Alex if you don't have enough time to kill it and maybe wait another 3 mins.

If it helps, just imagine theres someone taking a dumb after each kill.