Personally, I think the main issue of the "balancing" is coming down from players complaining about certain weapons/meta, and having absolutely no idea about the real gun-play or weapon balance in general, this is really a difficulty for LO, as a new company to achieve a certain balance point without upsetting the either the majority of the player-base or the skilled players. This is kinda harsh for silvers/bronze players but it's just how it is tbh, an opinion about weapon balance coming from a vet who has years of experience in the game and someone who is rather causal will differ a lot, and it's sad to see that the majority of the lower-skill population crying out about certain weapons just cause they don't know how to use them or rather gets killed by it, and they end up crying for balance and Nerf X and Y and too OP etc....
LO, faces really hard challenge here to sort of balance also the skill differences between players, and to actually know what weapons requires skill, and what weapons that are just broken and needs a fix. Cause with the way I see it, they are trying to make the weapons easier to use, and especially with how the shot-gun currently works, in APB it was never this case, most of the players are happy about it, but then again, making weapons easier is just a terrible way to balance things in any-game, and nerfing certain weapons just cause of a really high-gold player uses it, it's suddenly very OP, which is almost 60% of why so many people complain about certain weapons. Sometimes players are just really skilled at the game. Doesn't mean the weapon is broken, so many players fail to see that sadly, and complain way too much about it. Which is why it's leading to the point where weapons are becoming way too "easy" and a brain-dead silver can two-shot someone who has way better aim/thinking skill than them.
Balance should be a thing, but it should be done the right way. Just cause you get killed twice with a certain weapon doesn't mean it's too OP, there's always players who is going to be above you in skill/game experience. Hopefully more people see that kind of perspective and start understanding it.