The principle of FIDE rating the Open competition seems very sane to me. One thing I did notice reading them was that the proposal talks of using +-80 FIDE as the sole determinant for board order purposes.
Is that entirely wise? The FIDE ratings for the top few boards in the Open county teams will be mostly very reliable, but they really aren't for the bottom ones. There are solid reasons for so much of the 4NCL choosing to use converted ECF grades instead.
As for the other one, the split weekends do slightly confuse me. They'd surely only really help people fielding lots of teams if they let players double up in (say) the Open/U180 1/4 finals? Didn't seem clear if that would be allowed, but I'd rather hope not!