I never got what's the deal with that. Sincerely. If there's a break up, what's the difference doing it by text, phone or in person.
My gut says me that people may prefer in person because they saw a better chance of avoid the breakup that way, but I'm not sure.
Other than that if it's over it's over, I don't see the media in which the message is deliver. For all I care as if it's via smoke signals.