I recently completed a trip to cycle some of the Cols of the Pyrenees using a hired eBike.
The bike I used is a Wilier Cento1 Hybrid which is very similar to the Orbea Gain M20 and the Bianchi Aria e-road.
These are carbon road bikes all weighing around 12kg.
Its a fairly long review of the bike and the hiring experience so I am pasting this link to my article (I hope this is allowed).
Owning the exact same bike I was really interested in your post, I tried to the link to your video but unfortunately it didn't work. I would absolutely love to do something similar especially as I have now purchased the range extender