It never went away for me, I just make it myself!
I’ll have like 1/4 glass of milk and add chocolate syrup then as I mix that I add seltzer and if stirring correctly it won’t fizz up. I know people say adding the acidity of seltzer spoils the milk, but I’ve never noticed it when I make it.
Ahhh that would make sense then as I always used whole milk. I’ll take your word for it, I don’t need to taste that! lol