A good question, considering that Apple would not currently be a big user of NdPr. This must be about securing critical supplies for a future Product, that will need a lot of magnets ~ Robotics ? being the most likely candidate. But, given the development time required to bring such a project on line, you would initially think that Apple could quite easily wait until RE production stabilises in around 5 years time. Apparently not, so I can only deduce that whatever the Project is, it is well advanced and almost ready to go into production.
As for trying to make any sense about what is going on in Donalds head, it is like betting on flies crawling up a wall ~