Honestly, I support nothing that constitutes adding MORE divisions, not less.
I am still a newb who plays rec but I also think there's a lot of unnecessary possibilities. I'd streamline it to:
MPO
FPO
MA
MM (Mixed Masters)
JA
Maybe because I'm just starting this thing in my 40s... but I'm not playing in tournaments to win the prizes in MA3. I'm playing them to see how I can play against others, see new venues, meet some other players who are about my level. For me, it's more about how I can play versus my rating says I should be able to play I guess, and the $40ish bucks it costs for a tournament comes with enough ancillary swag stuffs that "cashing" is not what brings me to the tournament. So a MA division (including MA1, MA2, MA3, MA4) would be fine as far as I'm concerned.