I could probably beat that Givens person in the article on my first try. Maybe if she was running under 3 hours, she could talk, but I know a lot of people would consider her slow.
I understand closing off the course after a certain time, due to costs or contracts with cities and whatever else, but I don't understand why anyone would get in a huff over a slower marathon runner if he/she isn't affecting his run. I think it's just an insecurity issue these few elitists have; they don't feel as important when someone 3 hours slower than them says they ran the same marathon. But what do I know.