Charging the E to 100% should not be an issue. Having 28kW ish available from 35.3kW suggests actual SOC can only operate between 10-90%. Cars % readout is calibrated 0-100% over 80% of actual battery.

Range is probably better then you think. I believe the battery state indicator to be off set, 100-50% is more capacity than 50-0%.

I also have a kona 64kw and this performs much better than the e.

Drove both honda and kona over 35 miles to drop off one car.

Ambient temp 13°C, honda returned 3.6m/kWh with heating/AC off.
Kona returned 4.3 m/kWh with heating and air con on. Both from cold.
Same trip, identical drives.

The Honda e is as brilliant as it is rubbish. Styling and driving is 2nd to none, efficiency is second to everyone.
The carwow vid was on a warm day and the e still took an early bath.

If you achieve 2.5kWh or greater 70 miles could be done.

80% indication dosen't matter as based on last few drives.
Would be better to report miles covered after 80% battery used, along with miles per kWh.

I would expect the Honda to heat to about the same temp as the VW.
Battery will pick up heat in normal operation so why heat to 25C.
For max capacity 20C is about right.

Honda e appears to have poor efficiency.
My mk1 leaf has a resistive heater and returns better miles per kWh.
If the ev-database info is to be believed 3.5 m/kWh average would give 100 mile range