MP's are hated and relegated to the dustbin because all they can do is focus their attention on the standards on the ship. There are no true antagonists onboard to deal with, and Xeno's of course can't be arrested nor do any of the MP's passive tools work on them. And even with the introduction of agents, they don't have any true impact on the ship or round, which mean's the MP's are left to deal with wet, paper bags.
If the Almayer had systems and controls that mattered, like it did back in the day, then agent's/antags screwing around with them would contribute to the round. Subsequently, the MP's would have something to do other than kick deltards in the balls for giggles.
Taking a cleaver to the various depth mechanics that make SS13 as deep and rich as it is, has had a cascading effect on multiple areas of gameplay. I was never a proponent of it, and it was main thing that led to me retiring. It was infuriating to see medical, engineering, atmos, et cetera ripped out or castrated to placate a playstyle which, imo, doesn't work well in this medium.