Also, it's worth pointing out that Sakurai's tried to create at least some differences between the FE Lords (even if the ever-dreaded time crunch created the clones to begin with). Such as the sweetspot / sourspot stuff (whether they exist or don't). I haven't seen the competitive community complain as much about the FE clones as say casuals or the people here largely because the more minor differences do matter there.
Roy's journey is an interesting case study: In Melee he had unfinished hitboxes and attacks (due to the timecrunch) and as such no one made much of a splash with him until
Don'tTestMe Zain proved that
a skilled can beat any . His Smash 4 incarnation suffers a bit from laggy attacks. But now with his Ultimate self? Sakurai's realised his dream and turned him into a high tier attack monster that can convert jabs into much, much more. That might help Roy's chances in future installments or whatever now that he's a viable character.
I do wonder what you and other Nintendo-leaning people will think if the project
TPC and Tencent's working on turns out to be a Pokemon MOBA or other multiplayer-focused game. Now, I presume that you're disinterested in the genre at large, but I'm asking this question since the project could be a proof-of-concept of what you're saying.