While I think you’re generally on point, this misses the mark a bit. We don’t want more transmission lines running in CA, right? We don’t want lots of little companies increasing the risk of fire by managing lines independently and the one that’s losing then doesn’t have the means to maintain those lines.
We might want competition at the generation point, but the transmission lines should be a monopoly. What needs to be fixed on the transmission is that there should not be a profit in maintaining them, bc the profit comes from lack of maintenance. The last three disasters caused by PG&E, can basically be boiled down to a maintenance problem, or lack of.
All the transmission lines and maintenance should be transferred to the state, and the profit motive, by not maintaining the infrastructure properly, be removed.
Again, competition in power generation (and storage) is good, competition in transmission is bad.