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.