Exactly right. I trust my car mechanics to be able to fix my car. They have done so in the past quite well. That doesn't mean I'd trust them to know the history of cars. That's not their area of expertise. It wouldn't be fair for me to expect them to be historians in addition to car mechanics.
I think this is the first time that we have debated that particular punch on this forum, and how it relates to boxing technique. Well done young man!