Some of this is "yes, I wish people understood that" to me, like:

"It’s to make it as clear as possible which types of problems you’ve solved in the past, and how well you solved them." This is all I care about. I want to see the complexity of what you've handled.

"As a result, their bullet points are full of sentences that begin “Responsible for” or “Worked on” or “Assigned to.”" These phrases have always struck me as meaning "I sat in the same building while these things were going on."

But when the author suggests using numbers, those strike me as bs. I assume that success in moving numbers depends on what the starting point is. I'm sure I could walk into the typical high growth startup and find tons of places where I could get a 10x performance improvement, because they've been focused on other things. Is reducing AWS cost by 17% (from a low baseline) better than doubling AWS cost and allowing the team to make better decisions because the data is normalized and easily searchable?