I think that there is some misunderstanding on the operation of toyota's hybrid system. Toyota's hybrid system (and the only exclusion to this rule would be the hybrid max power trains in the crown 2.4 turbo, and the tundra/tacoma), is that it is a parallel system. The hybrid system is working in parallel to the gas engine.
This is different to how Honda's hybrid system works, were it cannot run in parallel due to the transmission design. In a honda, you can only run battery power, or engine power, but not both at the same time.
So if you wanted to compare battery miles, a toyota would not be the one to look at, since it doesn't actually run in "pure ev" mode. It can, at very very low speeds, but usually does not.
As I have said before, I ran 0w16 in my camry non hybrid for well over 250k miles (I am currently at 268k) and the engine runs perfectly, what gave out was the 8 speed transmission, not the engine, so for those that think 0w16 is going to be a make / break issue....I don't see why. There are many people who go 250k miles on the new gen toyota engines (m20a/a25a) without issues using 0w16. TGMO oil is a great blend imo, just wouldn't use it in high performance applications.