Oh, there's much, much worse... Zelda for instance when each game has people complaining about how underwhelming she is. In each game, she's been reliant on 3 moves: Down Smash, Fair, and Bair, that weren't changed as much unlike Utilt, Din's Fire, Farore's Wind, or gaining a new Down Special that on paper, would be a great move in any mode, but it does not function properly. They could have give it a weight-based hitbox for the "tackle" so it would link into the rest of the hit, but whatever.
Dr. Mario in Smash 4 is what Melee Dr. Mario was supposed to be: a slower, stronger Mario, but they ended up making him have a faster air speed and the same speed for rest of him. Melee Doc was a stronger and even faster Mario. Game development is difficult and stressful, but come on, really? It's like saying Ganondorf is the slower, stronger Captain Falcon, but he ends up running as Sonic's speed in Melee. The main issue is that Dr. Mario is too slow and not strong enough for that speed. That speed is more like Ganondorf where Dr. Mario should be about as strong as him which he is... for Fair. Dr. Mario running at Olimar or Luigi's speed would be fine, but once again whatever.
Dan from Street Fighter, the joke character, but in the right hands, this dude was a monster. In Smash? The joke character is Zelda and she's not even supposed to be the joke character. The "joke characters" in Smash are characters like Duck Hunt, Wario, Triple D, Diddy, Luigi, Pac-Man, and Wii Fit Trainer where they make you laugh, do silly things, or make you question if that's even possible like WFT murdering people with yoga or Luigi poking you to death. Melee did have a joke character, Pichu, but after that, it's pretty much Zelda who's bad in every game, who even gets worse with the developers' believing such a change like Farore's Wind killing would be beneficial to her - it does, but that's like giving Shulk a stronger Dair while ignoring his other issues. She doesn't have trouble killing, but she has trouble in general when you have 3 sweet-spot aerials, Smashes that don't connect properly which have been fixed finally, and pretty much reliant on a bare minimum of moves. When people talk about Ganondorf making reads, it's true, but he has an entire moveset to make reads that also function as his core of punishing, spacing, and comboing. Zelda? Her reads are much riskier to use and flubbing them means a dead princess.
That's a much, much worse character design when people complain about it, know it's flawed, and yet you continue to leave it like that while making superficial changes or even making it worse. Din's Fire could have been her Down Special and made into an AOE attack just like in Ocarina of Time - it's the only Great Fairy's gift that doesn't remotely resemble the OoT counterparts - while Light Arrow or a different projectile could have been her Neutral Special. Lucina being Marth without tippers is bad since it does undermine her and a character that could have been, but guess what? She functions well unlike Zelda, Dr. Mario functions well unlike Zelda, and Dark Pit damn well functions when outside of Side Special, all his other "changes" aren't that much different.