So, what's the point of learning what heroes are good in what maps, and why? All trademarks referenced herein are the properties of their respective owners. You have two choices: The game rewards you for not caring about the subtleties in the roles. Of course, this doesn't help always, and assumes you have at least players that don't cry or bitch all the time. QM promotes bad comps and a lot of the time you have lost by the time the loading screen hits.
However, as I started to watch top player streams and read more comments on Reddit, the tone began to shift.
When hovering a hero, have a section for "preferred maps". Stop thinking comps is so important esp in QM. It's completely unbalanced. See I have a cousin I play with on a regular basis, he is the very definition of a casual gamer, I'm the opposite, I like being under the pressure of the fight and such. From the minute you install HOTS, you are being taught incorrect information about how the game is played.