You're doing essentially the opposite of appeal to authority.

Imagine being a bright, capable mind, and a hard worker. You've decided to focus on a particular career which makes use of some of your skills, allows you a platform for recognition, and pays the bills. Say programming, or a dancer, or a top-tier professional athlete.

Imagine that you still spend your free time satiating your intellectual curiosity in other ways, learning about all the things you didn't have time to devote your life to.

Now imagine that you decide to share your own thoughts and opinions about say, cooking, or politics, or whatever, and you get shot down because a programmer's unique life skills isn't transferable to cooking or politics.

> whatever wisdom they gathered through their exceptionally unique life situation is not going to be transferable to the life of 99.999..% of the world

You can say this about literally any profession when you include the scope of the entire world and the people in it. And this is why we share our knowledge and wisdom with others, because we each only have a few pieces of the puzzle. Kobe shared his point of view so that others might gain some insight into the mind of a hard-working athlete, not so that someone might dismiss his thoughts based on his career (even though you try to claim it's not about his career, you start with the phrase "A popular basketball player", so it's fairly transparent what your meaning is).

My choosing of phrase “A popular basketball player” is not to dismiss him on the basis of his profession but to contextualize his authority; that his authority comes from being good at sports but most importantly being enormously famous. This should not create undue relevance for him in this particular topic. But halo effects and whatnot, our stone age brains have the tendency to attribute importance to what he might say no matter what the subject matter is. If this is anti-appeal to authority, I believe it is appropriate.

Also, it is not the uniqueness of his skills that makes his wisdom questionably applicable on this matter. It is the totality of his life circumstances being radically different. Having enormous financial, social and athletic capital makes his situation very very divergent from practically everyone else’s. And it is not his wisdom about romantic relationships, how to be a father etc we’re questioning, it is about working at the expense of a balanced life, from a person who has a very special kind of work.

> My choosing of phrase “A popular basketball player” is not to dismiss him on the basis of his profession but to contextualize his authority

So you admit, you're making an appeal to (lack of) authority. And it is based on his profession, or you wouldn't have brought up his profession while attempting to discredit his thoughts.

Discrediting him based on his profession would be saying "don't listen to a basketball player about work". That's not what I'm saying. I'm saying "don't give much credence to an immensely popular and powerful basketball player about work, because he is an outlier of outliers". He could have been an immensely popular and rich plumber for all I care, I still wouldn't put much weight to the fact that he "liked work".

If you feel like you can identify with Kobe Bryant to the point of finding his work/life advice useful, go ahead. I don't. I find it misleading. I find it harmful. He is far from being the top thinker on this matter. He is not Bertrand Russel talking "In Praise of Idleness". He is irrelevant.

I'm sorry, but I can't understand why you don't see the utility in listening to what a highly successful person has to say about their personal work ethic.

Reread the quote again. He wasn't giving advice. He was explaining his own mentality. You jumped the gun and started criticizing him as if he is proselytizing on the streets.

If there are any criticisms to be had about what Kobe said, they could be made in good faith without an unnecessary mention of his career as a limiting factor of his experience.