Ultimately concerts and events tickets are optional leisure/luxury items and, as I mentioned, we can argue all we want about bad monopolies but as long as the tickets sell it means the price is fine, so why would they be cheaper? It's not an ideological belief about anything or a rejection of anything.
This is a natural monopoly anyway. There are no competing Taylor Swift concerts for instance and, at least for popular events the number of available tickets is going to be smaller than the number of people interested and the basic law of supply and demand applies.
When we see how prices often still massively inflate on resale it seems to me that official prices could often still be higher if they wanted to but it then becomes a PR issue. We've recently seen that here in the UK with dynamic pricing for tickets to the Oasis reunion.
Perhaps they are simply getting more effective, and with fewer qualms, at extracting the best prices possible.