oh boy! so here are a few things that you should know by now.
A) NA Branch is following the KR developers, all major decisions are made from NC KR, there is absolutely no way that any game mechanic will change especiall for Essence/Aden, we have the least populated servers.
B)the reason for the "10 client" per PC is simple, there is a cap for Live servers for 3 clients, classic 5 clients and aden 10 clients, the thing is that they have somehow efed up the client so much that if you play both on Live and Aden, you have to Launch the Live clients first, then the Classic ( if you have) and last the Aden. Now if you have 3 live and 3 Aden and one of the Live ones crahses, you have to close ALL aden clients, and launch the Live one ( useless tip of the day)
C) even with the events, the "f2p" toons do not make as much adena so the server looks packed "numbers matter"
D) they could add more mobs or increase the respawn rate but this needs approval from NC KR
They added class change with adena, you literally need just adena to reroll to another class, on Live you have to wait 6 months ( if they still have Red libra).
Finally, you cant compare a geared class with an alt, in all regions Essence has Titans/DK as FoTM class and the rest play as they want. If you want to pvp you will have to play along, if you just want to farm adena, then pick any class and enjoy the game