Rosemary is a supporting role. And it is a drab role as well, and Megan played it as written--that is to say quite straight. The post is correct when they say she didn't make much of an impression. Stritch wasn't nominated either and expressed public displeasure that she wasn't when there were only 2 performances that were.
Yes, there were only two new musicals that opened for 1995. Sunset Blvd won book and score against literally no competition. I think those awards went to the wrong show.... Irony is that Smokey Joe's Cafe played 5 years with a successful tour and won no Tonys while Sunset won 7 and closed at a loss. Smokey Joe's opened the Tony broadcast and did a smashing on location "On Broadway" that resembled a video more than a show clip.
In 1989 the only 'new' shows were 2 compilation revues, Jerome Robbins Broadway and Black and Blue plus the only book show, Starmites. The book and score categories were eliminated that year.
Big River was a sad year. One of the reasons Big River got such a great set of reviews is that it was the last new show to come in and all the others were dogs. Not that Big River is bad, far from it, but it sure isn't a great show either. There were no Tonys for lead actor or actress in a musical and I think choreography may have been cut as well.
"If my life weren't funny, it would just be true. And that would be unacceptable."
--Carrie Fisher