Ah yes, we should go ahead with a ban on public transportation due to a fucking anecdote. You and my former boss would get along quite well.
Diesel is very polluting compared to gasoline and I hate it. And stop/start diesel is the worst. So despite its great reputation public buses are not the automatic win they are made out to be.
Buses help with traffic and CO2, they do not help with soot. And the city in this article is having trouble with soot.
It would be wonderful if all buses were LNG, then there'd be little drawbacks. But right now they aren't, and because LNG is more expensive cities are buying diesel instead.
PS. In general cursing means you acknowledge your position is incorrect but you wish to use bluster to defend it anyway. It makes little difference if you don't intend this meaning - this is the meaning that is transmitted.