Before my MY, I had a Hyundai PHEV Tucson, which had three charging port on the right rear and the gasoline port on the left rear. My charger has a long cord so it works for me on either side.Except for many/most people, backing out of a parking spot is much easier than backing in. Our driveway is sloped upwards and backing into the garage is definitely more difficult and dangerous than driving straight in, especially in the winter. Arguing that backing out causes accidents seems rather silly when virtually every parking lot in the US has only spaces designed to back out of. Also, many stores that have EV charging spaces have them in angled drive-in spots. If you want to back in you need to drive the wrong way down the parking row.
You can argue that the rear camera makes backing in easier, but it also makes backing out easier and safer, so that’s really a wash.
I’d also note that having the charge port in the back means more people are likely to need a longer charging cable which has its own disadvantages.
Thanks for the diagram, @Zoomit - I note that the Kona and Ioniq have there charge ports in different places. Since Hyundai and Kia are sister companies I would have expected them to be in the same place.
Regarding parking and backing out of parking spaces. One of the few things I miss in that Tucson PHEV is the overhead camera which really really helped with parking in tight spaces to get that perspective, and actually I missed the backup alarm which at first I thought was annoying but there's no way somebody's going to miss me backing out of a parking spot in the parking lot with this annoying backup alarm that goes off anytime I was in reverse. So I'm having to make the adjustment with my model y to get used to the different perspective of just having a rear and two side cameras as well as no notice to those around me that I'm backing up. I don't regret coming over to Tesla but I really would like an overhead camera and at least the option in settings of having a backup alarm.