Well, feel free to have a look at any of my short stories. I almost never use a dialogue tag and have never received comments on the dialogue being bogged down. You need to add the right details, and the right amount of them. But for me it makes it come alive. A conversation is never just that. It's words, tone, gestures, body language...
You lose that part of the interaction when you don't describe at least a bit of it.
I hope you don't think I am criticising you, or your writing. You are obviously a very skilled writer, and have found what works for you. I also think that the tips you provide are really useful, and clear. I worry that inexperienced writers might get bogged down in descriptions that don't move the story onward, when a simple he said might be better used (every now and then, NOT every time that someone speaks). I am not against the use of description of action instead of tags - I use this myself with tags too. I have even written a story with no tags or description (just dialogue, with only two words happening outside of quotation marks). That works too if you have distinct voices. (if you are interested it was written a couple of years ago https://brucearbuckle.com/2015/10/19/one-beadh-of-a-trip/).
Don't worry. If I felt insulted, you'd know it. ;-)
I'm... rather impulsive that way... :-D