You're not wrong, but all you've ended up describing to the poster is that you don't actually have a network to leverage for finding work - which is what they're advocating for here, not walking into places to hand physical resumes.
Netorking has its own problems that are much harder to solve.
For the time being, leveraging a network is still the best way to get hired.
I think in my career so far in ~8 companies and many clients, I only got one of those jobs From a "cold" job posting application. Everything else was at least a soft referral by an acquaintance.