]Time has erased all of LR’s practical reasons against the match between Anne and FW leaving only her personal dislike of him against it...

I think this is it in a nutshell. I agree that LR ignores him because she has no valid reasons that she can bring against him anymore. If he had shown up, still lacking in funds, I have no doubt she would have had much to say. My opinion is that Anne has very good instincts about people because she bases her decisions about them on character rather than "appearances". She takes time to notice and reflect on what she sees in a person. All her judgements about all the characters have been correct as far as I can remember. She fell in love right from the start with a good man, someone she could value and by whom she would be valued in return. Very quickly she is able to discern qualities in Mr. Elliot that make her suspicious of his true character. Anne, I feel, represents the ushering in of a change in a society. Lady R on the other hand bases her judgements on rank and appearances and thus comes up with the wrong answer. She is representative of those who want to preserve what always been, thus her desire for a continuance of Kellynch as it has always been. If she had her way dear Anne would be married to a snake in the grass just to maintain "the present society". As ever, justmy humble opinion. :)