A post that alluded I must live in a museum, that positive trainers take it way too far
I saw that too and couldn't figure out how to respond without being confrontational, so I kept my mouth shut.
However, I have similar feelings to what you've expressed here. My house is hardly a museum, and I routinely leaving steaming food on the coffee table at nose height and then go back into the kitchen for a drink with no concern that my dogs will grab it. There is also zero counter surfing in my home from two Goldens who are capable of getting their entire bodies up on the counter with an easy jump.
You don't need to use unpleasant surprises, physical discomfort, or "dominance" to make a dog a livable member of the household. You need to prevent dogs from self-rewarding for undesired behavior and set up patterns to reward them for the things you want. I'm not an ideological purist when it comes to correction, but I think if you can avoid it by shifting your technique, why wouldn't you?
The less I have to intimidate or use discomfort, the better. Who could argue against that? If I didn't have rock solid obedience, you could say I was taking it too far, but nobody who's watched me handle my dogs at the house or at class could say that I don't have their attention or that they aren't anything but incredibly motivated to work for me in all contexts.
I spend a lot of time at the dog training center these days, working with incredibly skilled certified professionals who have never corrected a dog—as least in my presence—with a tap, a harsh word, a scruff shake, or anything from the traditional correction playbook. Watching one precision heel an intense bull-mix rescue dog who's prancing away like it's the best game in the world, or watching another take a nippy, wild client dog and have him walking politely on lead within ten or twenty steps, it would be hard to argue that they had taken positivity "too far."