The gentleman who coded the server manager stopped coding/improving it many years ago, and his old website/forum has been closed for many years. Thus, any new suggestions, however awesome, cannot be implemented as it was not open source code. We're stuck with what we have, and for the majority of events it works great.
We have had crash recovery on the server for well over a decade, otherwise the crashes would have stopped the server until someone could go in and end the popup.
Most admins have map changing privs and can change to other maps that are not on rotation; the caveat being, they have to remember to take it back to any map on rotation when they're done, or it starts over at Market.
Ren, we really do what we can in a dying game. We used to be inundated with admin apps, that doesn't happen any longer. And yes, it is hard to find a player who is willing to sacrifice their own game for the sake of the server/players, which is what it takes to be an admin.
We do the best we can, it will just never be perfect...or enough.