MagSafe is sweet, and I think it's a smart move for Apple to launch it this year in preparation for the anticipated "portless" iPhone. By the time they do that, the MagSafe ecosystem will be ready for it, and people won't complain as much about getting the phone right on the charging pad.
It would have been sweeter if it was regular USB-C, so we're not contributing to the massive piles of e-waste generated by their continually changing proprietary adapters.
They have literally had 2 adapters for the entire history of the iPhone. "Continually changing" is flat out wrong and changing it to USB-C on the other end would support the opposite point you're making.