Defense doesn't exist anymore

The game is now a "If you're caught, you're dead" kind of game. Tanks are no longer tanky enough to do their job. High damage is up across the board and cc is the king atm. If any player gets picked by one cc, they are dead. This is shown in solo queue games and it is shown in pro play. In fact, it is now a surprise when someone survives a fight for more than five seconds. It is like the heavens have opened when that happens. This is why ranged mages are currently very good. Not only is there little MR across the board, AP items are cheap and most of these mages have cc. At this point, every champ in the game has some form of cc, so it's basically a zerg rush as far as who can hard win a fight. Naturally, positioning is now punished significantly, but a lot of it becomes RNG with vision being scarce unless you control a space of the map, at which point, your positioning is never punished. Towers are so weak that if you lose one fight, 1 or 2, or even an inhib are gone. Objectives die due to said high damage, too. Strategy of cs and such have lowered, as you can just wait for the right fight, cc someone, win it, and get all the objectives you want.