The FAIRY QUEEN has ALWAYS been dressed as a Valkyrie ( with enormous wings and winged helmet...which was Gilbert's design! ), or a gigantic ballgown, wings, and twinkling crown.
I'm a purist, so get put off by changes of any kind.
And I'm also a stickler for all of the traditional "bits", that the famous early people added. Yes, I do know them all and when listening to/seeing an operetta, must work V. hard to constrain myself, in public, from doing them. I have the hardest time, constraining myself, during THE MIKADO, because, as a rather little kiddo, that's the operetta I spent the most time watching my parents rehearse/was taught, by my mother, all of the motions for the fan.
I was gonna say the queen I mentioned was garbed that way...I remember a helmet and sword and of course a wand.
The Mikado was the last show I was a chorus member of. At one point in the show there was a bit of dialog, a locally famous(went on to sing in the NY Opera run then by Beverly Sills) tenor Ricky Leach came wandering in singing “Butterfly....Butterfly”....He pauses and asks Yum YUm/…..”excuse’...Nagasaki? while holding a map upside down...she replies No...Tittipu and turns the map right side up and pointing to a location...Leach/Pinkerton replies “”ahhh grazzi(sic) and wanders off the stage singing “Butterfly” in a pure tenor f sharp while the audience laughed and applauded!