Why do EFB and AGM start/stop batteries need registering / programming? How does that work?

I actually found quite a few answers in this video. The guy explains that you need to input the "BEM code"; some manufacturers put a sticker with this code on the battery, but not all. This code tells the car how to properly manage the battery and is entered using a device that looks like a tablet, connected to the car.

There is also the VCDS software, which I think is a software you can install on a Windows laptop; an example is here

These videos answer how a new battery is registered to the car, but I'll confess I still haven't fully understood why it's needed and if it really has to be so convoluted. I must say it does remind me of how corporations fight the "right to repair" (google Louis Rossmann right to repair), forcing you to use only official channels for even the most banal type of repair. Yes, the videos talk about how the car must be told that there is a new battery, but is entering a specific code which not all batteries have, and entering it with a very specific tool the only feasible way to do so?