a reminder that said novel was written during the 2nd edition days, when many things about the setting was still in flux. for example, at the time whether their were even factories able to produce new mechs was in question, as the 2nd edition rulebook had a setting where there was no ability to produce vehicles more complex than tanks, and things like battlemechs, spacecraft, and most fusion powered vehicles survived entirely off salvage and dwindling stockpiles of old parts. the book however includes mechs from TRO3025, which retconned factories back into existence, but the details were vague and it was heavily implied the output was so low as to functionally be the same as no factories.
later Grey Death novels, once the setting had stabilized into what we recognize, took the tack of having Greyson be a reactionary that feared for the total loss of technology due to war far more than normal, even in timeperiods when technology and production were recovering and improving post-clan invasion. which presumably was done to justify statements such as the OP's quote as being from Greyson's own personal viewpoint.