I think their point was that the wireless MagSafe was basically a copy-paste of Qi, so it wasn't "mostly an Apple design" to begin with. "Qi2 is a copy-paste of MagSafe" (or "Qi2 is based on MagSafe") makes it sound a bit like they threw out the original Qi in favor of Apple's completely home-grown alternative, which comes with inaccurate connotations of who actually did the important work.

It's subjective how important the history is and how important Apple's contributions are, but that seems to be what they were getting at.

MagSafe was a branch of Qi that's been merged back to main.