For the between-villages commute, the speed pedelec seems like a good solution. 28mph, so not overly holding up traffic, power to carry loads etc. There may need to be some tweaks for disability use; I haven't looked closely at things like walk assist, throttle etc.
I've looked at them a few times, but really can't make them work for me as the law stands. I do about a ten mile commute, sometimes on a bicycle, sometimes on a motorbike, sometimes in a car. The car or motorbike are load carrying, bad weather or where I want to spend 20 minutes commuting rather than an hour (with changing and faffage at each end that's probably what it takes on a bicycle, about 35 minutes actually on the road). A standard e-bike wouldn't offer me much more than a bicycle, no increase in pace or luggage ability, less exercise. The motorbike gets me there quickly regardless of traffic, but without any exercise.
A speed pedelec would get me there faster than a bicycle, with the ability to haul more load, and get some exercise. Seems pretty perfect. Except that you need to register it as a moped, and wear a proper motorbike helmet, and find somewhere to mount a number plate (which is standard size, so going to get in the way and catch on things), and have a license, insurance and mot. At which point, you might as well save some cash and just get an electric motorbike, which is faster and easier to get road legal in the UK.
I'd like to see speed pedelecs be road legal, to be used like a bicycle (not a motorbike), but perhaps with more restrictions - only allowed on roads, not shared use paths, perhaps an older minimum age (17, like a moped?).
