So.... In league we have this strange meta enforcement.

Where champions are designed and balanced for the meta, instead of designed and balance for the game as a whole. Its a product of shortsightedness and a distinct inability of the developers (live balance, mostly) to step back and look at the game a whole.

The result, is things like "JUNGLE ONLY!" or "THIS CHAMPION CANNOT GO TO THIS LANE BECAUSE THEY ARE STRONG THERE AGAINST THE CURRENT META". It results in stagnation... a lot of stagnation. If you watch the LPL and the LCS, 80% of the same champions have been picked almost every game. this is because riot has enforced the meta and become unable to veiw the game as a whole - only the best of the best.