As we all have said, it could have ran much longer with several names that would have made it worthwhile.
The timing of Dolly VS TKAM, while not exactly matched, is very coincidental. Dolly’s closing was announced end of April, the lawsuit over Mockingbird was settled in May. Dolly closed in June, and Mockingbird started previews in November.
I’m sure Rudin moved out Dolly for TKAM. Even though it was doing fine (and could have done better had they continued), Rudin could smell more dollars with the next show, so he closed up shop. Similar to what Disney did with Beauty and the Beast/The Little Mermaid, as well as Marry Poppins/Aladdin.
I am big. It’s the REVIVALS that got small.