Before the S also were the Volt, Fisker Karma, and GM EV1.
I’d say a first gen Leaf looked fairly typical of small Nissan cars from that era, tbh; all their small cars looked a bit like that. And a Zoe looked pretty much the same as a Clio of like era. Interestingly, the Renault 5, their new electric car in the size category, is self-consciously weird-looking (you can get it in bright green as a standard option!), and seems to be doing very well.
Apart from BMW, the trend has been for electric cars to get more visibly weird/different, not less.
Yup, also see the weird styling decisions on the Toyota Prius and other hybrid cars that shared bodies with non-hybrids.
Your definition of normal makes me suspicious. I thought GM were "the first to make an EV that looked normal". Tesla was the first to make a "software defined vehicle", 10 years before this became mainstream. Tesla is the Google of EVs: the UX sucks, but everybody wants to copy it.