I think the flow of conversations are different because Aion altogether is a much more difficult and fast paced game. No one really has any time to bullshit around and talk especially when so much is at stake. (soul heal prices, time consuming back tracking, getting ganked by elyos groups)
I remember when I leveled my Paladin in FFXI there was plenty of time to talk in EXP parties. With macros, PS2 control and what not to make things easier, how longer it takes to down a monster your level.
I recommend you try playing with people that have Vent. Typing and playing at the same time can just be a goddamn nuisance.