Tests have been done on driving faster stop times etc and if driving faster leads to more stops then on some journeys slower could be faster but on your premise of driving faster so needing the same number of stops but having to stop a bit longer I believe faster still comes out faster based on the supercharger network. I have no citation. there are you tube videos out there if you look but generally it turns out faster is still faster. enough to make it worthwhile? that's down to the individual
The central premise of my post is, quote: "you'll get where you're going at least as quickly as you would at 75."
I stand by it. Especially given the real-world charging times and behaviour the OP has quoted. Does he want to make multiple stops after leaving the office at midnight, arriving with <10% SoC to save 90 seconds on journey time? Doubtful.
I don't think Bjorn Nylands efforts to min/max the hell out of something, interesting though are, are that relevant here.