As stated, two different charging methods. And also as stated, Apple was unable to best physics for AirPower. However, I disagree that AirPower was “meh.” I likely wouldn’t have bought one myself, but understanding that is wasn’t simply another wireless charger and what they were trying to achieve is interesting. Every current wireless charging mat has a charge spot, that your device can move out of and stop charging. AirPower was meant to eliminate that by making the entire surface the charging spot. Furthermore, the Apple Watch has a magnetic charger. AirPower was meant to make that wireless as well. More than that though, AirPower was meant to let you charge these devices anywhere on the mat at any time. That’s where physics came into play. Too many coils, too much heat.
So to more directly answer your question, no, I don’t believe Samsung’s reverse wireless charging played any role in Apple scrapping AirPower.