Could it be related to the recent news of diminshing sales of new iPhones?
“iPhone sales drop more than forecast, revenue falls for third straight quarter” https://news.ycombinator.com/item?id=36992251
“iPhone slump wipes £100B off Apple's value” https://news.ycombinator.com/item?id=37001689
If they expect people to keep using older phones, which would require repairs, they would prefer those to be iPhones.