Except that, normals isn't a good excuse if you don't want to play seriously. There's a lot of people that take normals way more seriously then they take ranked.
Also, and this is for those who know what I'm talking about, I'm not going to sit there and play an hour+ long match that my team can't come back to because we're being camped at our own fountain by a bunch of jerks who would rather constantly kill the my team over ending the game. Nor would I like to sit in an hour+ game where we can't do anything because everyone is so behind, that we can't even get picks.
There's a reason their's a surrender in all modes. Deal with it.