Indefinite pronouns don't explain your position.
So the prowlers that only CPL and higher can pull that have no real advantages and require us to be sirening you for 5 whole seconds before we can even make use of the one benefit of that vehicle? Mind you that it is slower than most commonly used vehicles such as Hatchbacks and SUVs.
Undercover LTs applies to such a small margin that it's not even applicable. Despite the fact that this benefits one of the smallest populations within the APD they are undercover and thus weaponry isn't even their greatest strength. Then again, we haven't even seen confirmed notes on what that weaponry is little less what they actually do or benefit.
Construction isn't much better given that proper placement by the rebels, who have all the time in the world prior to starting the bank to set up, can negate it rather easily. Additionally, unreachables who are downed tend to, as we have seen with 99% of the banks, have a buddy who covers them and prevents them from being restrained. This brings up the point that rebels get to choose most of their major conflicts and decide how they want to fight it. The APD has to react to a lot of given scenarios. I am not going to say that we aren't the aggressors sometimes but there's a lot more room for Rebels do to so than the APD.
As far as "Buffs" to the APD we haven't really gotten anything meaningful or game breaking. Some of our recent fixes were literally allowing us to enter as Gunners without having to unlock the vehicle, giving one of the smallest populations of the APD more weaponry to blend in with the other rebels who are wielding 7.62s, and raising the price of hummingbirds. How is that a buff?