I was at the meeting in Columbia last night. Roger Hazel did say that "no cones" or any other sport specific equipment. Yes, a few other sports also could and do use cones. But not all sports use cones.
He used the an example of baseball and running the bases as a specific drill of what should not be done due to the uniqueness of that drill to that sport. While generic for many sports, it is the weaving drill around the cones that directly enhances soccer - while not being specific to just soccer.
Reading between the lines of what was said, I would not use cones, but create or use some other drill - and use something other than cones (or nothing at all) to organize your conditioning.
I hope this helps