Yes you are taking context of multiple thoughts going at once and applying it to fit this narrative that I think players aren't overall better at the game which is nonsense and it's clear you are just using these as confirmation bias for your 'theory' of something I LITERALLY never said.
Yes, players are better today, a major MAJOR part of that is the knowledge we have of the game. Is that seriously a surprise to you? Did I at any point in there say "It would take them just as long to down it today with no knowledge as it took them to down it back then"? Did I say this? Because if I said something like this then it would make more sense for your theory.
I'll walk you through this because it's clear you are struggling here.
I first pointed out that people are better at this game because of knowledge of the game. This is 100% obvious and shouldn't even be questioned.
Look at fortnite for example, look at the average player in fortnite today and compare them to the average player in season one. They are leaps and bounds ahead of that season one player. Why? Is it because people are just so much better at video games today they rocketed forward that much? Maybe, but the biggest thing is that they understand the game better, they know the meta, they have the muscle memory building down so well it's basically nothing to them.
Same goes for wow. We understand the game better, especially because it's been out for so long. We have guides on min/maxing raid comps for that expansion and gearing that it's to a point where we could probably double the damage output. Wow isn't a mechanically difficult game, it's all about the knowledge of fights, gear, raid comps, etc that pushes you to that point (pve specifically).
Now that brings me to my other point, and I really need you to follow here with what I just said in mind.
Will bosses be one shot and rolled by random players who haven't played the game (TBC SPECIFICALLY DON'T BRING UP CLASSIC AGAIN). No, I don't believe they will. I believe if someone walks into tbc with no knowledge of the expansion, no knowledge of the fights, and goes in completely blind, yes, they are going to take quite a long time to down some of these bosses.
NOW DOES THAT MEAN THAT PLAYERS WILL TAKE LONGER OR AS LONG AS THE PLAYERS BACK THEN? No. This is where you are implying what I'm saying. I never said that. I said it is going to take them much longer to down these fights and complete them compared to what this random person saying it will be one shot by LFR pugs.
Here I'll use classic one time as a comparison because I know you loved to keep going back to it. Go into classic right now, find a pug for AQ40 where people haven't done the fights... I guarantee you are sitting in there for 4 hours or more. This is common freakin sense to everyone who has played any iteration of this recently and it honestly should come to no surprise to anyone who has played wow for years.... No lfr raid is walking into a raid like ssc or sunwell and one shotting every boss or "just 20 minutes behind top raiders overall" is not realistic at all.
Also, your post is irrelevant to what I was saying because you didn't even understand what I was arguing against or for my guy, you linked me an article about a guy telling us how easy the content is because of all the knowledge we have, wow my guy such relevance much understanding A+ grade for you.