We clearly have differing opinions on what the word "simple" means

"Simple" was my reply to a very specific statement of "hit the play button in Steam", it was not a generic statement. You're purposefully taking what I said out of context.

I would argue that games outside of steam is almost as simple as steam

And I would call that a blatant lie.

if not for the fact that you need to know what software to download in advanced

And a long list of information on how to configure it. Hence the tutorial.