If the Avos approached shidduchim the way we do, how is it that Yitzchak married Rivka? Her brother was “off the derech”, her father chazal say had no qualms about murdering someone. How did rivka marry Yitzchak? Her brother eisav was surely not from the best bachurim in the yeshiva. Yackov didnt marry any great yichus. moshe married the daughter of an ex galach.
I guess one will counter that since both sides (to borrow a term used here) “interesting” they settled on their respective spouses.