Maybe it's just me, but I don't find it all that fun to watch.
The combos are just very repetitive and bland looking. It's just lots of repeating normals over and over again. I know that's how KI always was, but it still sucks.
Basically you and the opponent never move in a combo, you just stand in one spot wailing on them over and over again for like 20 seconds. It has no flair like Marvel/MK/Injustice/Anime games. The only real movement is wallcarry, and when you get to the wall, you just stay there.
Like look at combos from Vergil/Cyrax/Zod/Scorpion/Shazam. They all knock the opponent all over the screen with wall bounces and ground bounces, teleports, and crazy juggles. There just isn't much of that in KI, everyones combos look the same. Glacius is the only character who is even slightly different, but all that's different is he just does the same repetitive combo from across the screen with out moving.
It just feels like KI came onto the scene with really flashy combos for its time, but it was quickly surpassed and one upped by games like the Marvel series, SF alpha, hell, even MK3-4 had some crazy ass combos. And now that it's back, it didn't really step up its game, it stayed the same.
However, only 3 characters have been revealed so far, maybe they will mix it up and go crazy with some other characters.