The thing is the stamina tax just needed some tuning. They basically almost removed it altogether. As for smart spammers. Yes you are correct, so you have to not be predictable. Also that's why you only go for one shots to the body, for ex: body jabs or body straights. They nerfed em now. They come out slower, so it's harder to even go for single shots.
On head kicks and body kicks, that's why I said
sometimes. It's not always an option especially if they're good. Unless you have perfect timing. You have to mix things up and once again, not be predictable. I still don't agree on the stamina tax changes, it just needed tuning imo. The sway spam is ridiculous I definitely agree. If they didn't make the back lunge harder this wouldn't be too much of an issue because you would be able to keep your distance more. Now it's near impossible, even throwing jabs at them won't slow them down like it should. So you have to basically fight in the pocket again.