(Please can we stop stereotyping people by age. I saw DS9 the first time around and I’m not a Boomer. )
Star Trek has always had light moments in episodes. So this was nothing new. It was the case until the early 00s that many shows had an occasional musical interlude or even an entire musical episode. Sometimes celebrities would appear and do a whole song or their act.
That’s starting to happen again even in Sci-Fi. eg The Orville has had a few musical numbers. Also, keep watching SNW 😉