so no companies should build anything even if they attempt to pay for the externalities. this is just nimbyism.

You'll notice that I did not advocate against building and grid reconfiguration. Indeed, my company does microgrids. I do, however, believe strongly in being aware of tradeoffs.

In short, I'm very much in favor of building the right solution to a problem.

I am unsure what cognitively triggered an unhealthy response of "this is NIMBYism!" and would welcome a follow up comment to understand your train of thought.

"Attempt" is doing a lot of work there. Companies are driven by a profit motive, and are practically required to renege on promises that are not legally enforced.

In a different world they would have earned trust and deserve the benefit of the doubt. This is not that world.