That blog about SC2 Bronze is relevent to me but I suppose if you didn't read it through maybe some key points wouldn't have jumped out. Note: this is specifically in reference to my 5-7 bronze friends that all wholeheartedly believe they are better than they are.
A) When "something bad" happens in a game, for example, unwarded top and our hypothetical bronze top player face-checks tribush and dies to the waiting jungler. Bronze players TYPICALLY think to themselves "Whelp, found him..." and do the same thing in their future games while better players will actually learn something from the mistake.
The "study" this guy did wasn't on "are bronze players bad", he was trying to figure out WHY they were bad... and an avoidance of learning absolutely jives with my own trials and tribulations trying to (tactfully) teach my friends how to play. They hit their plateaus over a year ago and persist in the same stupid mistakes that they were making when they were fresh level 30s. But....
B) Their own self-assessment is flawed; they don't need to work on anything because they're already "pretty good"... except [insert reason here] happens and thats why they died in the enemy jungle or that's why the game was a loss. There are so many reasons that they aren't higher ranked and none of them have anything to do with their own play, because their own play is fine.
Case in point: Wizardhawk was simultaneously upset enough about his low ranking to complain to us while running ghost/clarity with god-awful rune pages. I'm not trying to pick on him, but I would wager the majority of people who placed Bronze and climbed their way out in 50-100 games hit up any number of resources online and set their shit up properly before diving deep into ranked play. Typically, bronze-4-life players don't do this because they aren't self-assessing and they're "pretty good" except for their shitty team-mates.
The final point this guy made that stood out to me was how the LoL version of "micro/macro better" is "ward more" and it isn't helpful because it's almost essentially the same as saying "play better". Bronze players don't buy wards and even if they did, they don't utilize them because they are stumbling over the logical steps involved in warding.
A) Buy ward.
B) Place ward strategically to...
C) Gain knowledge of enemy movements to...
D) Defend oneself and ones allies from unexpected attacks and...
E) Capitalize on enemy movements to...
F) Pick up momentum in the match via champion kills, dodging failed ganks, objective taking.
Without understanding this logic it isn't any surprise that my Bronze friends almost NEVER ward and even if they do they aren't checking their minimap. Warding/minimap awareness isn't the priority. They have no plan, they're in the lane just existing -- maybe they'll get a kill or maybe "OP as fuck J4 will gank again because hes camping the lane".