It's that 15GB costs ~$100 and comes with an automatic next throttle on next month's bandwidth if I go over. Or, purchase additional GB for $10 each.
It's like having a Porsche with a thimble sized tank of gasoline.
> After exceeding either of the usage thresholds, which vary by service package, we may significantly slow and/or restrict your service, or certain uses of your service. Your full service will be restored when your data usage in the prior 30 days falls below 70% for both usage thresholds.
So, if you go over, then for the next 30 days you're throttled UNTIL your volume stays under 70% of your cap over a 30 day period... Like, how is it even legal to sell one thing, but punish for using more than 70% of it sometimes
Most providers sell consumer broadband access based on headline speed because that's what the fixed line providers do.
When buying "professional" satellite broadband; users can buy un-contented at much lower speeds. A Ford Transit with a dedicated lane perhaps...