Ir…I also personally know a similar story, where the parents were not in touch with what their daughter really wanted and needed….and this girl consulted daas torah after she met a boy whom she felt was right for her but her parents object…well guess what daas torah( and im talking a few great rabbanim) decided in that situation that parents have no place to object to it and she can marry him! my point: everyone can bring a story with different outcome…however every person should consult daas torah,because whats right for one person can be totally different to someone else!!
the fact that in your story the boy and girl married someone else is irrelevant…the point is that they consulted a rov and for that situation he felt parents should be involved.
I can tell you from the personal story i quoted, the couple is happily married and the parents have learned to embrace situation with open arms and they did! had she been told my “well meaning” people that she must listen to her parents and followed that…well I don’t know what would have happened, but my guess would be she would not have married the boy she felt was perfect for her!
its very tricky when it comes to parents, because they are blinded by their love for their child and at times blinded by peer pressure as well or at times by their unrealistic hopes for their child to marry the “best” of the “best”. so sometimes they need the unbiased toradik third party to help them see things clearly.