Riot, if you want "diversity" change the summoner spells.
Flash is a must. On almost every champion. How about you make it so ALL summoner spells are useful for certain situations? Almost every game 10/10 people have flash, so why not make the other summoner spells just as strong? The usual setup for 50% of games is: Top Lane: TP/Flash Mid Lane: Ignite/Flash ADC: Heal/Flash Support: Exhaust/Flash Jungler: Smite/Flash Cleanse, Clarivoyance, and Clarity and RARELY used. Sure, in some special cases cleanse is useful. But the other 2, have no purpose. I would like to see all summoner spells be useful for certain situations, and not have 1 that is a "must" have. I know some of you are going to say that flash isn't needed for most champions and my lanes and the summoner spells associated with them are wrong, but if you spectate almost any diamond game it will have that setup.
If you agree with what I say, then leave a like so Riot will see it and make a change. For the better.