Difficulty of normal content.

[FlorineC]

If this were true, someone like OP wouldn't exist. The mere fact that OP unironically doesn't even want to queue for normal m3 and m4 because it's "too had for casuals" is proof that MSQ doesn't sufficiently teach people how to play game. I'll admit where one draws their "knows how to play the game" line is subjective, I still think getting to max level and people being lost like OP, doesn't make the MSQ teaches you how to play the game, all that compelling of an argument imo

I would argue that it's not the MSQ being a poor teacher as much as some players being poor students and being unwilling to learn, as OP has basically stated that they are. You can lead a horse to water, but you can't make it drink.