So with the new health and ammo changes coming, and their exclusivity to the crates due to if i read correctly, DICE wanting more people to go with the crates, i am left to ask how DICE thinks this will change anything.

The reason why these two items are less picked than the pouches is simple: your teammates get no information the crates are nearby.

There's no HUD or map icon as there were in previous games, no indication for your team that they can get health/ammo there. You can drop one of these, and unless it is in the middle of a massive team fight, they will be barely used at all even though most people will require tons of health/ammo.

I main the ammo crate as support, but that's exclusively because the pouch can't resupply equipment. I got each match with perhaps 5 resupplies in total, sometimes none, even though the crate is always near my team. Compare that to when i have the pouch and i easily get 50 a match if it drags on a bit.

If you want people to pick the crates more, than you need to make sure the team can actually see them, and be informed that they exist.