There was no judgement intended at all, more like mad respect. I've never seen an e-bike set up that way. I'm also a retired engineer (electrical) so, I get it. Like Stefan says, I ride a Bosch BES2 e-bike that has a Kiox display. I can't get more than four data elements on it's screen, and like you, I don't like scrolling. I have a smaller Garmin 840 with 8 data elements on it, and I save the Kiox for the four things I cannot get on the Garmin due to their closed system (My Power, Average Power, Cadence, Battery Remaining). It works out great, and I still have two data elements left on the Garmin if I need something else.
I work national and international pedal bicycle races throughout the year as an official. I have my Motor Commissaire license, but no motorcycle, so I work on the ground and in the Commissaire vehicles. At the larger races, the Motor Comms have their bike cockpits set up a lot like yours, but they are geared for bike racing. Three stopwatches, a GPS, a phone mount, and other such stuff. I'll be working one of these over the Labor Day weekend, and I'll post a picture of one for you.