Yeah even if the person came to this answer of their own independent thought process, this answer to the weakness question either comes off as: 1. "I work too

Yeah even if the person came to this answer of their own independent thought process, this answer to the weakness question either comes off as: 1. "I work too hard" which is one of those classic canned answers to avoid that makes you sound like a suckup or 2. "I can't manage my time to the point where I am in danger of tanking my own productivity or burning out or both", which even if true (plenty of us suffer from this), it is obviously not a great answer to give in a hiring process.