Winning rankeds has too many conditions

It should be much simplier, if you play well and you are lucky to get a good team you should win, if not you should lose.

But I've recently seen more and more WEIRD game victories/defeats, from teams with 20 kills ahead losing because of a baron steal, to myself being 10-0 and losing yet on other game 0-10 and winning.

I've seen very equal games take 1 hour to be finished due to ONE mistake (what kind of gameplay is this?!) while others surrendering at 20 because of complete rekting.

The game has become too umpredicatble = very bad gameplay for the players BUT very good enjoyable viewing for spectators in competitions like LCS

I used to know when a team was going to win through team composition back in season 2 and 3.... now I do not.

league of legends is becoming a basketball game on school, but with the EXACT rules of the tournaments. Meaning, everytime you do one step, FAULT, one touch, FAULT, one look, FAULT. The game instead of being made to be enjoyable by the player is being made to follow rules (the rules are LCS, etc.)