We also know prices can go up on the raw ticket and we know that consumers can bear that given where they were before this legislation. That additional money will go to Venues, Artists and Labels who will, ideally, create more and better shows for the all of us.
If you imagine today that a ticket is $45 (speaking US) and customers pay $450, eventually for it. That $405 doesn't go to the Artist or the Venue, it goes to a middle layer which adds little to no value for the eco-system beyond supporting a transaction. Moreover, when you spend all the budget on the ticket, you're less likely to buy merch and food at the venue.
Something most on this site could easily build with the help of stripe, a few database tables, and an API to the venue's ticketing management system.