There are no drafts in Europe in RL. Should that be changed in BB to reflect this? Arguing by RL is useless
I don't agree. Arguing from RL is essential, for instance if a sixth player, let's call him "goalie", would be in the BB line most people would deslike it, because it is not realistic.
With that said, RL in itself is not the only argument. One must look at "game play" too (for instance your example) and judge if it is a good idea to be true to RL in the particular case or not. Thus, I don't agree with your first statement, but I do agree with your conclusions.