On top of that, Frontier would be removing the Powerplay content from those who choose to play in the Solo and/or Private Group game client connectivity mode, for what would amount to no appreciable difference in the Powerplay outcome.
False. it is much more effective to kill a player that has 5000 merits in his/her pocket than killing a NPC ship and gaining 30 "counter-"merits.
For example. ALD player A undermines Hudson System X and Hudson player B kills player A while player A has 5000 merits not handed in. The effective counter (especially with the new changes) would be between 2500 and 5000 merits, which equal 83 - 167 NPC kills.
You can easily tell that killing ANY (not a specific) player is way more rewarding as long as they have ~100 merits or more in their pockets. PP PvP is just about that. Merit bombing and prevention. Don't hand in merits right before the trigger kicks in and kill anyone that might be suspicious to carry a merits bomb.
ofcourse, doing that in Solo/PG is way more secure as the risk of being killed is much much lower in PvE than in PvP as NPCs do not reflect the same risks as players due to their underdeveloped tactics and loadouts.
That said, people that choose Solo/PG have no interest in PvP whatsoever so there is no reason for them to participate in PP (a PvP focused system) in the first place. Shifting it to Open only makes PP fair and brings it closer to the palyers who intend to actually compete wit hall consequences instead of just seeking personal advantages.