First things first, belated Happy Birthday! Hope you had a blast on your day. Also, Glad you enjoyed the update!
Thanks for the feedback, it's a wall of text and a bit overwhelming, but it is always welcome. As a solo, these things are extremely helpful in tweaking/polishing the game as well as spotting bugs since I don't have a QA team.
Regarding the dropped inputs--yes, you are correct. It was by design for the last update, but a bad one, looks like. Jab spamming was an issue, and I was looking for a way to resolve it without complicating things. In the prior version, you could just hold the input to continue jabbing at the earliest possible time. I made it so that you can't just hold the key down, and precise timing (or really quick button mashing) is needed to launch a punch. I'll probably revert to the old one because the result is people lose inputs and think the game is broken.
For the other stuff, I'll need some time digest them and see what I can apply for the next or future updates!