Setting aside individual problems with it, this is because it suffers from a broad and blindingly obvious problem: investment is occurring in this area b/c it will be absolutely politically unpalatable in 20 years to still be emitting CO2.
A long analysis showing lithium is more expensive than just using gas is unnecessary, and not even wrong when its used to prove VCs are dumb or whatever.
Things are going to get that bad. Mark my words. It's like how it was obvious COVID was going to be a pandemic after January 2020. You could derive it from basic #s.
They're not looking to be cheaper-than.