I think the distinction here is, they provide the "regular" stream, and the FGS stream noting that it's much smaller yet looks similar. What they don't have is

I think the distinction here is, they provide the "regular" stream, and the FGS stream noting that it's much smaller yet looks similar. What they don't have is a lower-bandwidth "regular" one, what 2000-or-so kbps looks like without FGS.