There may be thousands of videos and thousands of workshops all proclaiming similar business practices.
The elements from the video are present in modern day WoW, again… it’s hard for me to believe you can’t put 2 and 2 together. Trying to get me to talk about whether or not Blizz “saw this exact video” is foolish, and that’s a silly argument to make.
You don’t have to be a mechanic to know the car broke down – similarly, you can figure out a thing from more than 1 source, especially when it’s a common business practice.
It appears you haven’t given this much thought.
You genuinely believe that RNG and a badge system are providing the required items at the same pace? You’re joking surely?
Soft currencies have precisely that – a calculable rate of acquisition, and with a finite number of them required to complete a collection.
It’s in the very definition that one may get unlucky with RNG and never get the slot + stats combination.
Let me give you a concrete example of something I experienced personally…
In WoD there were many PvP set pieces you could buy that all had diff secondary stats on them, so you could pick and mix, customize the build you wanted. There was this fun build for arcane mage where you just stacked crit and used this crystal’s AoE to cheese an enemy team. It was usable in arena. It was a fun thing to do.
It took me a short amount of time to get the currency (I was also stockpiling some of it) required to gear my char for that fun cheese to experiment.
Now imagine not having vendors… and you have no guarantee of the gear slot… and then of the stats.
Still don’t think RNG slows down progress?
Lastly
Hypotheticals are fun aren’t they, generalizing stuff and arguing that “oh the player base is so undecided”. This is not only a non-argument, it’s a fallacious way of trying to discuss with someone. You could call this a strawman. I never said those things and I don’t know why you’d think this train of thought is relevant.
For this, read my above posts, it’s an adapted model of increased RNG in a game where it historically wasn’t there.