True but there objectives are the hardest and most timing consuming of all classes. Interrrogation, firewalling command posts, disguising, etc. Well they seem to get alot of xp from doing each. Probably to make up from lack of actual instant abilities, they get more xp from the objective wheel.
Have you played it? I don't see operative's objectives being harder than any other classes...I don't think operatives will be lone wolves as much as people would think. Travel with the team, interrogate enemies the team has downed to give them an advantage, spot enemy operatives, have your team protect you while you firewall a command post, spot mines that the enemy may have placed, and occasionally disguise yourself with a body your team has downed.