Do you hate the college rule?
I do not.
I'd prefer that 2 feet be inbounds, but I don't hate the college rule.
However, even though only 1 foot is required in college that doesn't mean that the other foot can be out of bounds at the time that the receiver catches the ball -- he would be ruled out of bounds and the catch ruled out.
Like the NFL, they are still requiring that the body part in question come down completely within the field of play.
What you're suggesting is that depending on how much or how little of that body part is out of bounds should be taken into account when ruling on the validity of a catch and that's simply preposterous.