I never pick a cruise on what entertainment is offered, I book based on price, length and ports. I have enjoyed some of the Broadway like productions on the ships but not having them is not a deal breaker.
Imo this was a cut for cost savings, the big shows between props, production crews, cast salaries, cabins used not to mention the licensing fees comes out to lots and lots of money!
Unfortunately for those cruisers that really enjoy the shows I don’t see them coming back anytime soon