Did you just read the headline and paste without reading the rest of the article?
1.
“We will see how quickly they really move to CFx across all of their cameras,” Lewis continued. “Also, even though it is a
shrinking market,
lower-end cameras will still have SD for a while since they won’t need the power of a CFx card.”
Shrinking market - self explanatory
Lower-end cameras - dying. being replaced by phones.
https://petapixel.com/2017/03/03/latest-camera-sales-chart-reveals-death-compact-camera/
2.
“I think that there will be a decent size market for SD for several years,”
Ambigious. Apple designs for the majority. Not for a "decent size" market.
3.
"To say that support for SD should today be discarded is shortsighted, as the format still has several years left in widespread usage."
DVD drives had more than several years left when MacBook Air was introduced. And it was the right choice.
Flash was at its peak before Apple decided to not include support for the iPhone and iPad. Again, right choice.
Since when did Apple wait for a third party hardware standard to die before removing it from a major product line?