Parmandur
Book-Friend, he/him
Um...The issue is that some people are stuck in this mindset where no-one who doesn't have completely explicit magical powers can do anything that they can't personally imagine happening IRL (which we've seen from arguments even includes things which have happened IRL, but that person didn't know could happen).
It's a very silly situation, because Monks can get away with literally anything merely by vaguely muttering "It's Focus, ok" under their breath as they do the most anime stuff imaginable (even if they don't have to spend Focus or w/e to do it, and Focus isn't some well-defined or even necessarily supernatural ability), but it's TOTALLY ILLEGAL WRONG AND AGAINST THE GODS to have a Fighter or Rogue do the same thing. Unless you refer to "psionics" or "shadow magic" or something. Then suddenly it's totally fine!
And the same exact people are mostly aggressively opposed to the very obvious and simple solution which would be to have another class, one which uses Focus like the Monk but is an armoured, martial-weapon-using melee combatant (called, say, the Warrior), which could do all this stuff and just shrug and say "Focus, man" if asked how they did it. Maybe also add a light-armoured guy called the Skirmisher or something better (not good class name imagination right now!) who does the same for Rogues and Rangers.
There is a d20 game that does this with Focus Points, actually. It's a central feature of the Plotweaver system, everyone gets Focus Points as a derived stat per Scene. They can be used a bunch of different ways, depending on character abilities, but also form the basis of "social combat", wearing down the Focus points of an NPC when trying to change their mind about something.