I honestly disagree. If you can get 5 car users on a diesel bus, you are making a positive impact on the environment. And you can deploy way more diesel busses than electric ones. Once you build demand, you can skip busses altogether and replace with trams. The batteries in busses are a cool technology, but still exploit child labor and extended neocolonialism in the same way oil does. Also battery fires are much worse than normal fires.

I think we should electrify fleets as soon as possible but I think adding a few battery busses here and there won't do anything but pander to environmentalist