The term 'walk-off win' is lame to begin with, since the way it's used is completely bass-ackwards of its original meaning. Eck coined the term and used it to describe the losing pitcher sadly walking off the mound.
See, the losing team walks off, while the winning team goes nuts...
But now it's called a 'walk-off win'. Oh well, most people aren't very bright, what do you expect...