As for the other shows, while Zoey’s Extraordinary Playlist does not have the broad fanbase Manifest seemingly has, it does have an avid fanbase that liked having a musical series with spunk and heart on TV.
In its case there have also been petitions and more to save the series and it very nearly went to Peacock before efforts seemingly fizzled out.
NBC’s new sci-fi series Debris was somewhat less buzzy than the other two shows, but was relatively new during the Upfronts and was seemingly given time to grow before a decision was made.