Bayo is being played by Samsora online and against other top players, and being fairly successful at cranking out wins.
Luigi and Icees have very intricate combos that have yet to realize their full potential.
Say what you want about Samsora, the issue with Bayonetta is that she had 99.9% of her tech squeezed out in Smash 4, and in this game she has even less of it.
Stuff like Recovery Frame cancel with Down Air and autocancelled DABK and frame 1 Heel Slide are all gone, and Bullet Climax isn't as effective. The craziest tech about the character, minus her triple jump, is gone. And to make matters worse her recovery frames are either 1 frame quicker or up to 10 frames slower.
The point I'm making here is that Ultimate Bayonetta tech is already at it's peak. It doesn't get any better, it simply cannot because every option has been taken into account with the character, and we now have a techy, fully explored character thanks to the last game, that can't go anywhere with it.
You watch Lima and Tamim play and they just push her to the limit from the get-go. 90% of Bayonetta's cool, game winning stuff comes off a hard read, or from you opponent putting down the controller. The new airdodges were supposed to help Bayonetta's combos, but given how gimped they were it had the adverse effect. I don't think any other character has her oddly specific issue of not being able to kill.
Granted, people claim the character can rack up percent easily but when your combos stop working at 120%, and you kill at 170%, you have to **** around for a minute to get even close to closing a stock. Her individual moves even stop working at high percents. Up Tilt at 190% doesn't connect properly at all for example. Which really sucks because Up Tilt into Back Air is one of her best "save me" KO options, and that's messed up.
She's a stupidly linear character in the neutral. If you have a disjoint, you effectively win the matchup because she can't get in. Her gameplan is literally built around punishing, but you have zero incentive to approach her. If she tries to pressure you (held Nair, BC, bullet arts) you can immediately punish her. She either goes for unsafe move on shield #3 or fakes you out and goes for a grab that leads up to nothing. In a game with frame 6 Nairs, Bayonetta's has 10 frames of landing and is the 4th weakest knock back wise.
What little good she has is what little good she will have. While the Bayonetta Ult game plan has taken off, the counterplay hasn't. This character is going to get destroyed once any decent player learns the matchup specific tips:
Don't DI up
You can SDI out of Rapid Jab and Up B
You can tech her grounded side B
Her quickest kill move is frame 9
Her kill throw is 170%~ at the ledge
Punish her landing
Airdodge out of everything if you are both in the air
Character is dead as is and I highly doubt she is going to win anything unless 3.0.0 fixes her. Because at this point I think she can win more tournaments if she wasn't in the game.