Toro does maybe two/three small hits on the ground, you're frozen, LVL 1.
As mentioned, Cole's Giga Punch is insanely powerful, and I love his character. It sucks.
Heihachi has I think two hits and you're stuck on the ground, LVL 1.
Sir Dan hits you in the air, shoots you with the electro-arrow, LVL 1.
No, kill confirms aren't fair. There isn't any strategy involved. There's no way to protect yourself from one of these, and it sucks. It's just a cheap tactic and there's no sense of accomplishment. I'd much rather catch a player with Spike's LVL1 while they aren't paying attention that shooting them and leaving them no way to possibly have a chance to get away.
Evil Cole giga punch is unlockable, is spammable and is in punishable with super armor. Very few frame cooldown.
Unblockable? Pfft. My fully charged giga punch get blocked sometimes. Besides, just press the block button. And done.
Why not use your KCs as punish hits?
Then again, this is a game which encourages being a unfair combatant. I mean, if there's items to use, it's obvious you have to use them to get the upper hand.