How do you know it is technically correct without explanation. It's not much different from someone getting blown off for being annoying because they constantly question simple answers when seeking better understanding. I was fortunate to work with a group of engineers when I was very young that accepted my constant use of "why?" not as disrespectful questioning but realized I was actually learning so they naturally just provided more details leading to less "why?" being asked. This eventually got to the point where I would ask a question, and the answer would be to read a specific book on the shelf. This was way before the internet. I received a better education on the job than I ever was going to get in school.

So no, I'm not just going to take an opinion without more information. I don't change my mind just on say so.

It works if you know the person and have a baseline for how much confidence you give their opinions. If it's just a random person on the internet, they need to support their argument.

How can I disagree when they don't provide a reasoning behind why something is the better option?

When we switched from x264 to hardware based encoders it saved something like 90% on our customers' power and cooling bills.

So while this essay might be "technically correct" in some very narrow sense the author is speaking with far more authority than they have the experience to justify, which is what makes it obnoxious in the first place.