im 100 % convinced that that comes from people being kids. 12-17 year old kids. they cant keep two thoughts in their mind at the same time.
they have very poor sense of history and past achievements etc.
if a team wins 8 straight series after accomplishing nothing, they are untouchable.
and vice versa. A great team losing 4-5 games in a row is suddenly pure trash and all the players should get their contracts burnt.