Chita's show was not a revival, if not a new show it should have been a special event.
Fosco is certainly a "featured" not a "leading" role, he has very little stage time. Ball will be considered in the Featured actor in a musical categorey.
They only make these anouncements for clarification if something is other than the "normal" process. Generally the "leads" are billed above the title, but Maria was not, so they needed to annouce she was "lead" and not "featured."
The same thing in reverse happened with DIRTY ROTTEN SCOUNDRELS last year. All 5 "stars" were above the title, so they announced that Johanna Gleason and Greg Jbara would be considered for "featured," they did not have to announce that Norbert and John were "leads."
I stand corrected, you are as vapid as they say.