That is actually a very valid reason why it wouldn't be an in use commercial product at this point.
I'm still fairly sure that can be solved but it is a much higher bar to clear especially to do so and keep it within a cost that isn't insane.
We get high power electronics in things like rockets and jets and tanks etc. so again I'm sure it is possible eventually. It could easily be a price so high that it doesn't happen without government mandates or that artificial fuels from bio or carbon capture end up still lower priced than what it takes to make the tougher electronics.
Absolutely agree. Love the movie so much and in a world that loves incredible scales for sci-fi tech I haven't ever seen anything else like the Titans function in anything else.