You can both be right about this. PGE is subject to rural electrification mandates.
However, the way those mandates get satisfied can vary tremendously in cost, and because by regulation investor owned utilities are compensated as a % of their capex spend, there is an incentive to use more expensive solutions, especially when those solutions induce greater dependency on their transmission infrastructure.
Furthermore, apart from expensive bespoke off-grid setups, there is inherently no competition in transmission in distribution. It's a natural monopoly.
AFAIK, municipal utilities do not have any say over how IOU monopolies deploy capital, so why should they be subject to those costs?
If we feel that rural communities deserve electrical service (don't we all deserve it?), then perhaps those should be publicly owned/financed through taxes and a competitive bidding process by private entities, not shunted into uneven electricity rates.
I don't doubt that such people exist, but rural areas are also populated by people who are priced out of expensive urban centers. Furthermore, those two groups also probably have some overlap. I also agree that those people need to have skin in the game, but I don't see a way forward without compromise.
Has anyone estimated the cost savings of relieving this mandate?