Do they legitimately think that teams can just learn to play 12 maps on the highest level? This is just making the level of play worse for all the teams and making it easier for worse teams to pull pointless upsets based completely on getting lucky with the map draft, there are clearly teams that are better and worse on certain maps and you can clearly see that in their results, also some maps are trash and most pro's would agree to not wanting to play them at all if possible.
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