Having said that, I don't think it would be the biggest issue anyway; 1 and 3 are much bigger problems for HP and you're spot-on with those.
You also get to work with application developers who have built the things that run at the core of the major companies in the world, and many of them have decades of experience at this. These applications will likely never be put in the cloud or replaced by something with just a nicer GUI, since the important thing is security, correctness and absolute stability.
So do not rule out companies which seem to do "just boring" stuff when looking for your next job. Enterprise applications can be very challenging (and are also reliable money makers).
The core of some of these applications are not even developed in Waldorf but f.e. in Palo Alto or Seoul; so that interviewer doesn't know what he's talking about.