What you said, I said, then I said what you said?
I can see your point. Before I got on track, I did think of T3-9 as one complex. After driving it, I don't think you'd talk about turns 2-9 together for any reason other than passing zones for a DE.
Keep in mind they were still working out the passing zones which were 1-2, 10-11, 11-12, 12-13, 18-19, 19-20, 20-1. I definitely think T5-6 could and will be an advanced group passing zone in the future. Surprisingly T15-16 wasn't a passing zone but T12-13 was. The hardest one to take a pass in was 18-19.