I remain uncertain as to whether Powerplay is even supposed to facilitate indirect PvP competitive bucket-filling, which would be a prerequisite for non-RP direct combat anyway.The real… futility… about the whole notion “Open Only” PowerPlay 2.0 remains the fact that this game is not designed to facilitate direct PvP combat.
The number of cases where Undermining is worthwhile on a strategic level is basically zero - it's generally a really expensive way to gain control of a system, in terms of both raw CP and time taken to obtain those CP, even before any opposition is considered. Combine that with the major bias in favour of Reinforcement, the general lack of incentives to control more systems at all, and so on, and it's not a surprise that most of the actual contesting of systems is due to force of habit.