Let’s not forget the very same year they stopped including the charging brick they started including USB-C to lightning cables in the box, so that their supposedly environmentally friendly practice forced their users to buy a new brick unless they saved previous cables. Why didn’t they switch to USB-C back then? To make users do another transition a few short years later?
They’re aren’t exactly a company with a track record of maintaining standards for the convenience and backward compatibility for their customers. This idea that they kept lightning around to maintain legacy standards doesn’t really track with the rest of their behavior.
They have a 20+ year old reputation for abruptly dropping and replacing ports.