No, no, no… That’s not what I’m saying. Sorry I didn’t explain further. I definitely think a girl should make an effort to dress nicely for a date. What that means is somewhat subjective. Some may expect a suit, others casual shabbos… Either way, she most definitely should make a supreme effort to put herself together nicely… Make-up, hair done nicely, attractive clothing. Dressing up is a sign of respect and regard for the date. Dressing down can easily be perceived as a lack of interest in pursuing the shidduch.
I just think that outfits that are SUPER dressy are inappropriate for a date (think rhinestones on clothing, diamond and pearl earrings, etc…). There’s a limit as to what one can get away with on a date, in either direction: too fancy or too casual. It sounds like this girl went too far to the too casual. However, I would not suggest refusing a shidduch for that.