The point to note isn't how vulnerable our printed newspapers are but how surprisingly resilient.
However I think he should visit print trade shows every so often. At IPEX there was no equipment on show from Man Roland. They may not expect to sell many new machines in the UK.
At Graph Expo in Chicago I notice there are no stands from Heidelberg or Komori. So litho may not be facing up to digital print this time around.
Digital is suited to short runs or relatively short runs. There could be more regianla variation in the Saturday Guide or other supplements. I think the Guardian should check out forms of print that benefit from web input.