Probably because people believe Marth has the niche of tipper-reward spacing without getting other gravy features that put him clearly above other sword users. Just look at what happened to
![Roy Melee :roymelee: :roymelee:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
. Melee Marth just kinda did everything he did but better.
Now
![Roy :4feroy: :4feroy:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
has the swift frame data, auto-cancels and grab game over
![Marth :4marth: :4marth:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
to distinguish him, in exchange for his spacing
game not being as rewarding. Instead of grabbing to beat shields, Marth has uncharged Shield Breakers, plus his grab is pretty ordinary for a non-tether. Unless you consider this to be normal: