None of what you said counters what I said. You're encountering them more because the overall active player base is bigger. Past a certain point in the expansions life this surplus will fade and all that will be left are people who play the game constantly and maintenance players logging in every other month or so. Then the "skill" level will perceivably go back "up".. except not, because all that happened was the population reduced down to the people who play the game all the time.
We're not suddenly awash in the skill less.
I never said to pretend bad players don't exist. I'm saying OP's assertion that suddenly the entire playerbase is full of bad players is based on confirmation bias and elitist assumption.
As far as I've experienced people are perfectly willing to learn as long as you suggest improvements, not demand them. Ran the WoL trial last night in fact. Half the party had no idea what to do, died to the "easy' first part a couple times. I started coaching and we got through the rest in one go... strange that.
Dying doesn't matter all that much, taking a few more minutes for a run isn't going to kill anyone. Having demands like "Watch a video/learn the mechanics before doing anything in DF" is elitist BS.