Well, I don't want to get on the capital E - engineering tangent regarding software. But yeah, agreed on that. In most cases, we have been vibe engineering software this whole time.

Tangent aside, entropy favors the attacker even in the case of a building that has PE stamps on the plans and passes all codes at time of construction. Just leave it alone for a while with no maintenance, it will fall. Or, hire one man to correctly place charges. Far less work than what it took to build it.