He makes some valid points, though I don't know if his reasoning is sound. The way boxing is today, and the way it has been for many years, a few guys make an absolute mountain of money. A few guys make a living, and everybody else , even pros, box around the day job that pays the bills. There is no money in live gates, and television shows are rare and generally feature the show-case fighter and his victim. not a ton of room for up and comers.
I've read that the live gates declined because of the TV boom in the post WWII years, but I have also read that it was because white people quit going to the fights as fewer and fewer Irish, Italian, and Slavic kids (in the US) took up boxing. I don't know...I do know that, at the Olympic Auditorium, a traditional hotbed of boxing, they couldn't make mony off of live gates the last time they tried. I think that is because even rabid Hispanic fans will only show up to see mismatches so many times. Make good fights and people will come.
I think that the silly slap-fight style of amateur boxing and the asinine scoring have really hurt amateur boxing. I know I lost interest years ago. Pro boxing is not much different, not any more, not really, and I guess that it is really a reflection of people that don't understand what boxing is about, not in an actual sense, and not, especially, in a spiritual sense.