No worries, that's what makes every debate interesting. People will always view data differently and there's nothing wrong with that. I always appreciate the opportunity for friendly conversation on one of my favorite topics! Thanks!
As someone who works in the Youth Development field i have a very unique opportunity to view these questions as an organizer of leagues rather then a parent or coach. I would argue, and again no one is right or wrong here, that the top three reasons are not so much an excuse for athletes not meeting the demand to compete at a high level or lacking physical skills, commitment, etc. but are indicative to the pressures put on athletes by coaches and parents.
In my experience, parents aren't the ones making excuses for their kids but rather, the ones who are giving them reasons to quit. Too many kids are forced to specialize in a sport to early, pressured to train year round, and fed the win at all cost mentality from an early age. I've got parents in a 4 year old basketball league asking if we can do a full court press! Sports celebrates those who've achieved great success, convincing young athletes that they can be the next great superstar, when numbers will tell you that the chances of you, or your child, achieving that same success are literally millions to one. I'd say giving them the false hope of fame and riches has the potential to set those kids up for failure later in life more so then awarding them a trophy before they turn 10.