there are a lot of things taught in the trade ... using a hammer is not one of them ... never has been
You've moved the goalpost.
Unless I'm wrong, TMe was merely noting that DISCUSSION around hammer technique still abounds, despite the fact that hammering seems like such a straightforward thing. I see no suggestion on his part that construction workers "learn" how to hammer on their first day.
The point is, whether you're talking about how to swing a hammer or how to throw a drumstick, there are techniques and subtleties that people derive real value from discussing.
You don't just get to just dispense with 200+ years of time-tested drumming orthodoxy because you're annoyed by it.