It could be for a number of reasons. 1. OP wanted to emphasize what it is like to interview at a company which has a lot of resources to invest into interviews

It could be for a number of reasons. 1. OP wanted to emphasize what it is like to interview at a company which has a lot of resources to invest into interviews - one of the things mentioned was committing multiple people for a full day to just interview him, as well as willing to bear a high initial cost (travel, hotel) to interview him. 2. OP wanted to detail the interview process of such a financially successful company: who they hire, why they hire that person, how they find and select candidates that have contributed to that high financial success. 3. OP wanted a crafty title beyond "My interview at Apple" 4. More likely to be clicked on, shared, commented or voted on (i.e clickbait).