The more premades you have on your team, the more you are going to win. I don't see why I should waste my time as a solo player when a premade doesn't have to put in half the effort because they have a massive communication advantage. If you actually took away a premades ability to communicate, they couldn't 4v1 gank bot constantly and League would be a less toxic game.
Its plays like this that are COMPLETELY toxic to the game because you could just do really well and then get tower dived by 4 and SUPRISE... you've lost. Making the entire %%%%ing game luck based and pointless and again... Riot just don't give a flying F**K.
Its not premades as much as it is, the DIRTY, UNDERHANDED tactics they will use because they DESPERATE for wins. No honor amongst dogs right?