I don't expect people to play at lcs level in normals. But my example wasn't just "a mistake", he intentionally walked into 4 of their teammates alone knowing they were there and suicided because "I just wanted to try to get a kill lol". That is basically inting and using the bullshit excuse of "its just normals why you hef to be mad" is not a good reason to throw the game. He basically took all the hard work I did to get him fed and threw it away because lolloll who cares.
Even in normals a reasonable level of effort should be expected, especially when it is draft normals. If you really just give no fucks use blind pick.