It's not the problem with the numbers, it's a problem with design, map organization, and the removal of crucial tools to control anything that's happening.
The removal of Commander mode was just a terrible decision for a game that basically doubled in size. On top of that, they not only made squads smaller meaning there's far more of them, they removed voice communication. Battlefield was always a chaotic mess and that's certainly part of the charm, but that was due to a mix of experienced and inexperienced players being tossed together in a game. The older the original BF games got, the more coordinated games you could find because people got better and tactics were a thing. This game has no hope of that in it's current state. Some sort of map tools for squads at the very least would help. As of right now nobody has any idea what anyone else is doing outside of picking a red objective and hoping enough people follow to turn it blue.
There's also plenty of issues with the interface, map design and vehicles spawns/handling that contribute to the chaos. These are the kinds of things that could be fixed and balanced in time, but only if they take the community's comments to heart.
But here's the thing that bugs me the most about this whole deal - EA/DICE doubled the size of one of their biggest game franchises and made some pretty monumental changes along the way. Why on earth did they do so little beta testing with the general public, and why did they wait so long in the development cycle for the little beta testing they did do? Based on the reception to all the changes they made, notably the removal of SO many features, I think the answer is obvious.
