You're right, but the parent wasn't saying Israel has a vast spy network, they said Israel has the "biggest spy network ever invented, which is woven into practically all software and tech infrastructure we use in the West [...]".

That goes far beyond the realm of reality and parent is right to ridicule it.

Israel has (presumably) a pretty great spy network, but mostly around its immediate enemies. It's certainly much smaller than many other countries' spy networks, I imagine.