I've heard about intense marriage discrimination. When my dad was applying to med schools, he told me they threw out your app if you were married, regardless of anything else. Schools wanted your complete and total dedication to medicine and medicine only for those years.
But yeah, he tells me it was a lot simpler, and the process was less variable. You basically knew if you got in somewhere before applying, if your stats were up to par. Now there is just more variability.