He finally replied.
Only skimmed it, but he admitted that electric buses do actually make sense, because obviously they do in many circumstances.
Obviously his main hangup is systemic infrastructure and cultural problems, and well, that's just fine, it's not something I'm interested in debating.
I won't bother making a reply, there is zero value in it. A lot of people didn't like his first video and he has basically pulled back the claim that electric buses are a scam.