It never makes sense to deliberately not sell a film you've made to save on taxes.
However, it can make sense to stop selling a film because you think that the public will buy one of your other films instead where you earn more profits per copy.
However, it can make sense to stop selling a film because you think that the public will buy one of your other films instead where you earn more profits per copy.
https://en.wikipedia.org/wiki/Final_Space#:~:text=The%20seri....
Put another way, unless they physically destroy all copies of the movie or show or, for some other reason, are no longer able to distribute, license, or sell it, how can they plausibly argue that the fair market value of streaming rights to a reasonably popular movie or show is zero?