I dunno about that...
Extra points for attacking/defending objectives, 3 extra spawnpoints (if the squad is full), extra points for healing/reviving/resupplying squadmates, and squad perks...
Which suggests to me they're trying to encourage teamwork.
In fact, if it wasn't for the removal of the commander, I'd say it's more teamplay friendly than BF2.
FWIW, in BF2 I was lone-wolfing it about 75% of the time, in BF3 I'm always in a squad.