I think that is an important and overlooked point. Our A380s are not being used commercially, but are being kept flight-ready to be used when demand returns. The 777s and 787s are doing a *lot* of freighting, some hulls even with seats swapped for nets. Being able to operate in/out of most places that have a moderately long runway of adequate strength is a big plus with ad-hoc operations.
Overall, I really like the passenger experience on the 380, but the economics just don’t match those of the LH twins unless you can guarantee consistently high load factors, and even then it may not work. I can understand running 380s on certain busy routes between slot-constrained airports but in reality it’s better business to run smaller aircraft more frequently if you can, like LHR <-> JFK.