There are clear benefits for Apple here. China, as a manufacturing destination, has become less attractive due to rising wages and US-China trade war. Higher wages are good for Chinese people but not great for manufacturing. India is a cheaper destination and the recent government has been very business friendly. India now ranks 77th in the ease of doing business compared to 130th a few years ago. India has heavily invested in building out basic infrastructure like roads and power. It has also cracked down on corruption and a lot of government services have been digitized to reduce opportunities for corruption. Combined with a cheap labor force that speaks English is a great recipe for anybody looking to manufacture goods at a cheap price. Escaping the US-China trade war is a side benefit for Apple.