User blog comment:Mineko Charat Lucky/I propose that Flash should really be reworked/@comment-4124337-20130812143036/@comment-1330314-20130812144810

The problem with having a free extra gapcloser on a champ like is that he already has an amazing flash ability, and can use both for complete safety in lane and afterwards. Though I do agree that the above implementation is flawed, one of the reasons Flash is so overpicked is because it's mandatory on champs with no gapclosers, whereas on those with already strong mobility it provides so much extra gapclosing power it dominates every other summoner spell in usefulness. Champs like and  need it for safety in lane and for initiating in teamfights, whereas  can use it with his E to cover 875 units instantly. Giving Flash a fixed cooldown for every champ will invariably damage those who need it more than those who abuse it.