i mean.. LO is a company. i'm pretty sure their main concern is making money. i'm guessing keeping around a team of moderators would cost too much for it to be worth it.
I think the actual problem with the .45 is that the matchmaking doesn't pit two equally skilled teams against eachother. the risk vs reward when using the .45 is -low ammo count +more damage. so you need to be more skilled in order to use it. kinda like the direct hit in tf2.
the problem arises when you have someone that almost never misses vs someone who misses quite often. then the pro basically just gets an upgraded fbw.
There are well known cheaters, people who have literally posted videos of themselves cheating, still playing on their same max rank accounts. if there was just anyone who actually played the game moderating then these people would be banned.