Maybe I was slightly misunderstood, but I very much DON'T want the block input removed. My thought was that ducking is already an inherently defensive "move", so blocking while ducking would be redundant, but while standing it takes more effort. This is how it is in real boxing too, if you're standing upright, you must choose between defending your head or your midsection on the fly, but not while ducking and weaving since your center of gravity is low, and body is curled up and easily defensible, so long as you don't go on the offensive. Turtling isn't a problem as long as there's a way to defeat it.
Part of why I love this game so much is because even in its simplicity it feels more real than many high budget boxing games. There's no jank, no flashy fantasy effects, no tacky game mechanics, just a visceral and realistic 2D boxing match with a boxer that looks and moves like a boxer.
Ah yes, I re-read your comment and I realize I misunderstood. You meant auto parry body shots, I mistakenly thought for all. I will do some tests, try out your suggestions and also those by others, see what works well. Thank you for the feedback.
Also, thank you for the praise, I'm not sure I deserve it, but I am glad you loved my game so I'll take that win.