Support is better now with the paddle nerf. All in all though, I can't say they're in a good place. The primary issue with support is the combo ammo/health box simply provides too much utility for a single class.
I REALLY enjoyed the challenge to drag revive players though. I think that woke a lot of players up to how much more useful it is over just rezzing someone in the line of fire. I have had more drag revives, though it is diminishing.
Aside from reworking all the classes, I'm still of the mindset that the passives should be an ALWAYS instead of unlocking with score. Unlocking parts of the training path with score just makes play unpredictable because I'll get used to it in a match after I get it, then start the next match and oops I take extra time for everything again and have to adjust my play, then it unlocks and I have to adjust my play again, rinse and repeat every single match.
LMGs need almost an across the board accuracy buff, though that's not support specific I guess. The tradeoffs to an LMG should be mobility, and when all weapons are available there is almost no benefit to LMG use because most of them are SO inaccurate. An LMG should be a strong area denial device. Currently they're just another weapon in the pile and DO NOT fill an area denial role.
Suppression also needs to make a fast and hard return to classic styles. An old use of LMGs was to simply spray the ever living crap out of a sniper and keep them suppressed so that your team can advance on their location. Now you just get shot in the face because even if you are hitting the sniper in the head they suffer no accuracy or vision penalties.
ALMOST FORGOT. Change the darn button to pick up another persons kit. MAN it's annoying when I'm trying to drag someone but I instead pick up their kit, my kit, their kit, repeat forever until they die because I CANNOT CLICK THEM to rez them. Super annoying.