Nonsense. Our "stuffy" & formal Burns Night is still our society's largest event of our calendar, and folks seem to enjoy it for the very fact that it doesn't look like almost every other social event these days.
I'm glad to hear that. I hate to see traditions die off or be watered down. I actually wish that formal occasions were becoming more commonplace rather than less.

Not every formal event is "stuffy", by the way. Some of the best Burns Nights I have been to have been black tie affairs.
Just for the record, 'stuffy' was his term, not mine.