It's probably to match the restrictions for oil pumps? Or maybe to allow "cheaper" EVs to be viable.

I've never read a set of rules which sounded as level headed as these, especially when talking about something helping with climate change.

It's not: so far, at least in EU/the parts of the EU I live most, there are not that much BEVs and there are a sufficient number of chargers on highways, locations with 10 to 20+ 150-300kWp chargers are fairly common and only few of them are normally occupied. BUT if BEV spread such charging stations will be not enough, so you'll get many that try to reserve a charge via app/seen the current "crowded" state and decide to go to the next charger. Consider that any car tend to charge at least 10', mostly 15'. Ok, it's not that much, but if you have to wait just a car, let's say it's not the worst case all of the time, but still means a total 20' stop. Something ok if you are on vacation but not if you doing a long work trip and BEVs tend to be interesting economically if you run a bit long the year.

To me it seems reasonable distance. Unless you plan every trip exceedingly well. Also taking into account that charger might not be working.