As much as I hate kill confirms, I hope they do have them.
Why? Because I don't think Superbot has any plan to remove them soon, and with characters that already have them, it's the only way they can stay up to par with them.
If Superbot removed them from the game, I hope they don't have them.
If the two new characters didn't have a viable mechanic and (basically) all the others did, then I would see that as an issue. I'm pretty sure "kill confirms", setups, or whatever you call them are here to stay.
One last note, in my opinion, without kill confirms certain characters would be highly defunct in competitve 1v1 play because their specials are just too easy to dodge/counter otherwise. To those who say they shouldn't exist, you play a black-belt and tell me how you plan to win, lol.
If Kat has a kill confirm, I can definitely see many complaints: "Kat is too hard to land a super on! She just flies around, then lands a kill confirm!"
However, I prefer they don't. If they don't that just means less people using them. I'd be fine with a setup, like sir dan's setup, but not a kill confirm
^^^ given that the black belt uses kill confirms to land his level 1, I think we'd be on even grounds if it was removed
You seem unfamiliar with the level of play that I'm referring to. Without kill confirms, two incredibly skilled players can make even a 3-kill last for aeons, and it probably wasn't the intention of SuperBot to force good players to relentlessly dodge and miss each other to no avail for half an hour like you see in the god-awfully boring Super Smash Bros pro-play. Case and point, brawlers aren't meant for stale combat.