I don't have the ability to listen to a video right now to engage with the points this video specifically makes, but I will share something I just recently learnt that may alleviate some of the blame from Ticketmaster for concerts becoming expensive.
There's been a complete flip in the music industry. It used to be that record sales were the primary means of musicians getting income, and they would use concert tours as an advertisement for their records. But since digital downloads of singles, and even more since streaming, people listening to their music at home doesn't make much money for musicians anymore, except for from the small subset of hardcore fans who might be buying vinyl or other collectors' items. So instead they make money by touring and selling merch (which itself is often associated with a tour). Which naturally means prices need to rise.
None of this absolves Ticketmaster for its role in dishonestly raising the prices through the use of extra mandatory fees. The advertised price should be the minimum price you can actually pay, inclusive of all required components.
Unless you’re at the top, touring and merch have always been the money-makers. Can you provide evidence of this flip? Speaking from 20+ yr in DIY music, I’ve never known a band who wasn’t in big box stores to make anything approaching stable money off records and the bands I know in big box stores aren’t big enough to make much at all off 10% to 20% of a low volume of sales. Bands that are big enough to sell out a stadium are above my scope so I can only guess, say, Metallica made enough off record sales to do dumb shit like sue Napster.
On the backend I have yet to see a valid reason other than greed for a ticket servicer or artist to gouge prices as high as they go. Ticketmaster has openly talked about how they happily hide higher prices behind service fees for artists too afraid to openly gouge and secretly colludes with artists.
I don’t have the ability to listen to a video right now
This is the same as reading a clickbait headline and going off in the wrong direction. Your point is contradicted in the summary of the video and skimming the summary highlights all the things you would need to know.
What you're talking about happened way before the Ticketmaster-Live Nation monopoly became a thing. Today if you want to make a medium to large concert you have no choice most of the time but to use a Live Nation venue and Ticketmaster for tickets. For example Live Nation owns all large concert venues in Toronto and I recently learned they've purchased the well known smaller venues over the last few years. They're now in a position to extract more value from fans and performers. Similar to how large grocery chains can extract from both customers and suppliers.
You should see the video though. It explains things well.