Conflating lead-acid with lithium ion is a mistake; they're very different technologies. LiIon Battery durability is getting better at a very fast rate, and proper heating/cooling is a big part of that.

But the overall message is sound: you have to commit to a very different infrastructure if you want to make the change. Cities with an aging and/or poorly maintained diesel fleet are going to be better suited to making a 'clean break'.

China is pushing it through because it's a long-term investment. That makes sense for them. That doesn't mean that bus electrification is going to happen rapidly in the US.