Which is illogical really, don't you think? By your logic you are saying that Open is pointless, don't engage in it if you are serious about efficiency. Its like Man United playing in the Screwfix League.Open is there for those who wish to play in it - there's no requirement for anyone to do so. That some enjoy the frisson of the potential of a hostile player encounter is obvious, just as it is obvious that some have no interest in being engaged in PvP by a hostile player.
I don't have a problem with people in solo- what I do have a problem with is that you have one mode that is best for hauling that allows Powers to sidestep uncertainty from attack, making powers too stable (leading to stagnation).
Right now that uncertainty is in a mode that has players, but in the end that should be supplied by NPCs. Once that happens weighting can go back to being 1:1 between modes.
Which is true- but its the only potential challenge you'll get in any mode for Powerplay.Indeed - however players in Open don't set the challenge for any player other than those who they instance with.