I grew up on manual, and drove shift exclusively half my life. Automatic is great most of the time, but in snow and in the mountains I still prefer manual.
(1) In certain situations being able to "force" or maintain a specific gear is an advantage (snow; downhill), and automatic is either clunky or cannot even do it. I could see EV dynamic breaking being quite good here downhill. I could also see some towing scenarios being easier with manual (and others likely being harder).
(2) In certain dicey situations being able to disconnect the engine and its dynamics (drag) in a split second without having to take your hand or eye off the action can be critical. My father taught that to me, it's become reflex. Sometimes it is best if you just have to deal with your rolling car and not the additional (and sometimes unexpected) dynamics and load shifting that comes from the engine remaining attached. To this day that is why I hate driving in the snow with auto, even with all the modern technology.
For an EV with the motor directly at the wheel, yep, manual will go away. It won't die before I do, so I m fine. But aside from the fun factor, manual sometimes still beats auto. Each their own.
On a side, it's a lot of fun to drive a slow car fast - but you really need manual for that (in an ICE vehicle). Nothing worse than a slow car with auto (or CVT).