Welcome to criticaldance, Princess, and thanks for sharing your impressions.
Even more important in this role, we could hear the words! Much of Ogden Nash’s witty writing did not come across clearly. This seems to be a problem generally with opera, so much so that the ENO now displays the words on a screen above the stage.
As you mention, it's a recurrent problem in opera (sometimes it seems like they're singing in Italian or French or some other language).
Seriously, as I understand it -- and I'm no expert -- the techniques that are necessary in order to properly form the notes are antithetical to the techniques that are necessary for good articulation...and in opera, the notes come first.
Still, it's distracting to those of us who treasure language for its own sake.