Yes, it's gotten easier but if you think making 18-40 people split a glass once or twice a weekfor dynamis is easier than one person buying it and getting the currency then you're insane.
1) You can never be sure of your numbers
2) The runs people are broke for, they won't show up
3) The amount of time it takes to trade say 24 amounts of gil every week from everyone, making sure you have and no one skips would be a royal pain in the arse
4) Autodrop isn't particularly fair and dividing the currency fairly would be another timesink.
5) Far easier to bundle up gil rather than 24+ peeps bazaaring it.
6) even if you sell off the currency as a shell and split the gil, people will bitch and moan or distrust.