Let's think about what the good ol' admemes do that mods cannot. They can accept staff apps, permaban, demote people if needed, accept ban appeals and reports if its not something obvious and talk in staff meetings.
Mostly these are things that aren't really needed too often and with the current admins that are active they do a good job in my opinion.
We maybe need 1 or 2 new admins to help out but really it should be up to how good quality the staff is to see if they get admin since we are not really in dire need of new ones
Edit: to clarify mods can make decisions about any ban appeals as long as they aren't funky https://titsrp.com/showthread.php?tid=7076&pid=47081#pid47081 (you shouldn't be able to see the post if you're not mod+)