They're having problems with slow sales and are cutting production as a result.
http://bgr.com/2018/01/29/iphone-x-sales-high-price-supply-c...
Leaving out a big word from the headline:
>reportedly
Even the source the guy links to is his own article that is also conjecture. Great content.
It seems pretty unequivocal:
> Samsung Electronics is to slash production at its OLED panel plant in response to customer Apple's decision to reduce output of the iPhone X following weak demand
https://asia.nikkei.com/Business/AC/Samsung-to-slash-OLED-pa...
None of the words in your quote are sourced by Apple, they are entirely based on rumors in the supply chain.
Trying to read the tea leaves on what supplier changes mean for the overall market is a waste of your time. It’s about as far from unequivocal as I can imagine.
The iPhone X is the best selling phone since it came out, isn't it?