Y'know, it's weird how people keep saying Fire Emblem is 'well-represented'... Like, yeah there's a lot of characters, but they are some weird choices for actually representing the series as a whole. Despite having 7 playable characters, there's only like 3 unique movesets... and literally all of the characters are using swords when the variety of weaponry is half of what makes FE interesting. Even among the main characters, there are non-sword options, so it's strange. Not to mention that 3 out of 7 of the cast are from a single entry in the franchise, and Roy is by far the least-well-known/liked FE Lord from the GBA games (outside of Smash fans).
While I understand why all of these choices ended up getting made, it's still not really fair to call FE 'well-represented' in Smash.
It's more like 'easily cloned for Smash'.
(That said, if we get another FE character before Bandana Dee, I'm right there with you for the riot...)