PP is by it's very designed meant to be a player vs player mechanic, Solo players shouldn't even be capable of doing it, nor should Group, it should only be an Open option due to that. Since you don't even want the multiplayer aspects at all, what do you care about PP?
I don't think I agree with that. PP has very important functions for soloists too.
Even when I am in open, which is most of the time, I play solo.
I am not very much interested in PvP multiplayer at all, but I do like PowerPlay for the bigger picture it brings to the human universe.
PP is great at introducing a necessary expandable political layer to the ED universe that gives an identity to otherwise faceless star systems and perhaps even more importantly it gives a framework for direct and indirect player interaction. PP adds quite a bit of new dimensions to the game; it brings the Galaxy to life, it puts characters in context to the galaxy, it gives players who want that direction in what to do.
PP's political map also made the Human universe easier to digest and comprehend where at first the size of it felt overwhelming.
I believe this is important stuff and I would not want PP to go away, even if I never played Open again.
As far as PP's gameplay is concerned it made me as a soloist try out stuff I always avoided, like openly confronting local authorities in Enemy systems.
It was because of PP that I got several bounties on my head amounting to approximately 16 million credits in some of Archon Delaine's systems.
I would never have done this without PowerPlay.
I feel that FD's plan for giving the actions of PowerPlayers in Open much more weight is a fair and necessary step, but PP is not just interesting for PvP-ers.
I hope FD will be able to improve Powerplay gameplay to make it more interesting to participate for everyone, no matter the mode they play PP in.