What's the Impact on their Service Life
Any word on how many years of operational life have been sacrificed? Maneuvering fuel is often the limiting factor for satellites and presumably they must have used plenty of it to make a substantial orbital change like this. Once the fuel tanks are nearly empty the birds can no longer maintain station. They're supposed to use the last of their fuel to move away to a graveyard orbit or deorbit to avoid being a hazard.