Ofcourse valve knows that the red dots pop up before the smoke is fully faded. As long as it isnt a bug in the olofmeister boost sense, they just figure it would be the same for everybody. They didnt think it would be an advantage to anybody, and that people would zoom in. That said, i fully agree that they should do something about it, either remove enemys on map, or fix it so the red dot pops up later. That is my opinion anyway, hope you can respond without any condescending comment.