Yeah: in a very real sense the "original sin" here was introducing (nay: forcing) class syntax to JavaScript, a language which at its core doesn't even naturall

Yeah: in a very real sense the "original sin" here was introducing (nay: forcing) class syntax to JavaScript, a language which at its core doesn't even naturally use/model classes (as it was designed around prototypes); all of this other complexity is the language falling downhill in an attempt to merely regain functionality for this new syntax that was previously trivial when you simply assigned "methods" directly to your prototype with the = operator (and so making it obvious where you would add a normal function call to functionally compose behaviors instead of needing a "decorator").