Its a typical Samsung money grab, supply everyone with an unusable cable so you are forced to buy a wifi charger or a usb c adapter from them.
In technical terms, no they could not simply keep it USB Type-A.
The devices itself are becoming more power demanding.
Besides that the batteries can be charged faster thus require a more powerful charger.
You however could choose to accept a (somewhat) shorter lifespan of the battery and buy a usb cable in stead.
I myself prefer the Powerline+ series from *mazon and its brand, distinctively red.