It’s also reasonable for OVH to not do that, as most of their customers don’t understand 95th percentile billing, which is the model that they’re being charged at by their transit suppliers.
It’s also reasonable for OVH to not do that, as most of their customers dont understand that transit costs blend with port costs depending on destination, and some destinations are effectively ‘free’ to send/receive from (fixed port costs only, no marginal costs), and other destinations are not (marginal costs associated with transit supplier fees).
The billing model consumers want is a simple BW used calculation, without facing the reality that if they consume their entire BW allowance as quickly as possible, it incurs order of magnitude higher costs than if they consume it at a trickle over the whole month.