The article is good and at the end of the day, it's a... rant.
The core issue that substance the main point of the author is that we do not have a scientific and empirically validated method for management in technology (IT). This is expected since tech is a quite new industry that surged after the late 90's.
On top of it, we do not have established literature related to the economics of IT to calculate the opportunity costs, average acceptable waste, association between cloud costs x productivity and delivery value, and so on.
Most leaders and managers are using methods that can or cannot work, but it's a discovery phase now in how to establish a management method that covers inefficiencies, opportunity costs, and value.
Although I started writing at 6PM on a random day after a stupid meeting, and actually tend to agree that there's worthier stuff to be popular - but people click on what they want.
I have a whole bunch of more boring stuff around, with much less swearing, and I think I'm more comfortable with the low level of attention that gets.