Despite what some may think, expensive housing doesn't benefit anyone, not even those who own the housing. Not, unless you're willing to leave the area, then you can cash out and live like a king.
That's increasingly the problem in CA. Current residents have spent so much on housing that their only chance for a decent retirement is of their home values keep going up. They've paid so much that they haven't contributed nearly enough to their retirement accounts.
You can hardly blame a NIMBY if nearly 100% of their net worth is tied up in their home value and falling home values will result in them having 0 retirement and no ability to sell their home and move because they are so far underwater.
But if it is an identification of a problem? I think it is fair. The amount of misery that NIMBYs can spread through forced inaction significantly outweighs the amount received in the case of action, I think.