ED is a 'game as a service' so its subject to change. Its not held to the DDF or the past in that regard.Potential gain, potential loss - unknown at this time. The principle is what the game we all bought is based on - wanting Frontier to stick to what they have sold us all is hardly an unreasonable position.
FD surely sit down saying: this part caters for x, while this caters for y. They must also realize by now some features don't fit in certain ways.Some backers / players have been trying to get Frontier to move away from their stance on PvP for well over six years now, variously demanding the complete removal of Solo and Private Groups, removing the effect of Solo and Private Groups on the game, introducing incentives for playing in Open, etc.. Much to the chagrin of those demanding an Open only BGS, the Devs reiterated who the BGS is actually for in the BGS & Scenarios stream of last year.
That notwithstanding, we await Frontier's decision on which changes they are prepared to make to Powerplay based on a subset of those contained in Sandro's first Flash Topic. They will, as always, make their own decision for their own reasons (e.g. removal of UA bombing).
FD must also realise that ED is in dire need of emergent content generated by the game. The automated BGS system provides some of that, Powerplay can do that too but its currently hamstrung by modes that bring everything down to bar chart chasing.
Early on FD saw how much dev input is needed with Powerplay, and how many times they botched tending it. The evidence is quite clear how they backed away from direct intervention to the point of ignoring it. Misleading Galnet stories, promised features not appearing (like collapse), data not being posted, server problems, Power decals appearing late and incomplete, PP bobbleheads being stuck in limbo, it just goes on and on.
At least with an Open Powerplay it allows pledges to entertain each other as they fight for dominance. It might not be content for everyone, but its given ED something it did not have before made from a 'dead' feature essentially for free using whats already avaialble. But as you say, 'Potential gain, potential loss - unknown at this time.'