Your initial statement does create a problem for many
Many say what you said or similar and make it seem like Halacha and you made it seem as much.
When people find out that its NOT halcha , thats its either a chumra or someones personal opinion they begin to question other things people said
When its a Rebbe or Morah who says such a thing and the girls find out its not truth, they begind to think everything is false and question everything they said leading the road to OTD