I'm not keen to defend anything. I know this can seem unusual, but I'm just trying to understand the situation as well as possible. I'm not treating any option as a team to blindly cheer on.

The problem with what you're saying is that to supply peak power at all times could require building capacity in each method to supply full power, in case the others all fall to zero power. And even then, you hope that they don't all fall to zero, I guess.