This is some retarded logic that I'd probably expect from unseasoned veterans of the game, do people really want LONGER games where ADC's and even mages scale to the point they can 2 shot regulars and 4 shot tanks?
league of legends isn't some game where you have an epic anime battle final showdown where everyone is full 6 items and shooting lasers from their finger tips.
The game originated from the REAL TIME STRATEGY genre, thus expect REAL TIME STRATEGY.
etc. counter picks, champion select swapping, summoner spell selection, lane pressure, map pressure, vision control, objective management, trade-offs, skirmishes, resource/creep management, time based scaling, LOSSES/GAINS and many more.
in the end, the ultimate goal was victory and we achieved it because we outperformed our enemies on these fronts.
improvise, adapt and overcome.