Restoration:
The repair or returning to service of one or more telecommunications services that have
experienced a service outage or are unusable for any reason, including a damaged or
impaired telecommunications facility. Such repair or returning to service may be done
by patching, rerouting, substitution of component parts or pathways, and other means,
as determined necessary by a service vendor.
My understanding, and what we did while I worked for a Tier I ISP, was that even for degraded circuits we had to do everything in our power to restore to full operations. If capacity is an issue and causes TSP coded DIA circuits to be unusable then that falls under the "any reason" clause of that line.
If you're going to bang that drum, the place you're going to get the most buck-for-your-bang is using it to force better cooperation between ISPs.
It appears that baking cakes was not sufficient to get recalcitrant players to work together.
Perhaps a global pandemic may be sufficient to have government begin to *compel* networks to interconnect at locations at which they share common peering infrastructure?
If you're worried about congestion and performance, that would be the place to start pushing.
Matt
staying safely at home away from the flame-fest that may ensue from this. ^_^;