It's probably tough to measure. I imagine most of the bottlenecking comes from communicating with external entities, which may not scale well by adding more Stripers to the task. I would be surprised if they could just pull a developer aside and say "Joe, you're off feature X. Go call up Canada and make things happen!"

While they probably don't feel external pressure due to lack of competition, I doubt they're hotdoggin' it because they are leaving money on the table.