This is pretty cool. I wish I had someone to play with though because I think this is even more of a multiplayer game than the average fighting game. I'm a fighting game player and I've tried a few of the simplified mini-fighting-games like footsies, but in this game since there is no moving, the elements being focused on are timing and mind games, which I think is why some people had issues with it. It didn't feel like there was an input buffer, so when the AI is jabbing over and over for example you need to time your next action to when your character recovers from the jab, and I think most people who don't play fighting games will just try to mash and not realize this. And the other main thing about the game are mind games, but for one it's not clear what options beat what, I'm assuming jab loses to ducking or perfect block but is good against regular block, hook probably beats ducking with the right timing. But I don't think these things are intuitive to people who don't play fighting games and it also doesn't make sense against an AI (which is why I said I wish I could play with someone locally), playing mind games with an AI is pretty pointless.
Overall I think you tried to make a fighting game that was more intuitive to people who don't play fighting games but I think people would still need to be taught how to play it properly and even though it's very simple the timing part still makes it kinda hard. But as a fighting game fan this was interesting to try.