I respect your position, but disagree. The game allows for PvP and as such should not allow it to be neutered at will, particularly when allowing for player factions and PP and the conflicts that come with it.
For time zones and platforms, the few PvP groups I know have people around the world and on different platforms. I would prefer platforms not to be an issue for all aspects of the game and interaction, but while it is, that's life and they would have to cope with this. On time zones, if you want to play a group but want safe time, tough. War does not stop because you go to bed in real life so there is no reason it should here.
Instancing is another technical issue I would like to se sorted, but again on that I would say suck it up, the same problem when defending is a bonus when attacking so over time it will balance out.
I would annoy all sides though with my solution. I would introduce a PvE open as mobius is this by default anyway, but alongside that I would get PMFs to declare if they are open or PvE and only allow a system they control to have it's BGS influences in that mode. You could play your mode wherever you like and gain rep in any mode, but if you want to attack a PMF, it's on their playing field. As an aggressor, you don't like the mode to attack in, then don't attack. As a defender you get to play as you want.