Yes, that was my point.
I think.
Many electronic strip-equipped towers started off with reverting to paper strips as the contingency. The further we go, the greater the proportion of ATCOs have no experience of paper strips (or procedural ATC, or any other 'old school' way of controlling). Is it fair to expect that we should continue planning to use such methods for contingency?
Or do we accept that modern ATM systems are required, and if we lose them then we either shut the whole thing down, or we run at a very, very reduced capacity.
Don't forget that the support staff required to run a 'manual' operation are in many cases no longer there.
Terrain Safe, you're not expected to keep the operation going at the same level without electronic strips though. Are you?