I don't really buy it. IMO, the biggest reason formal verification isn't used much in software development right now is that formal verification needs requirements to be fixed in stone, and in the real world requirements are changing constantly: from customer requests, from changes in libraries or external systems, and competitive market pressures. AI and vibe coding will probably accelerate this trend: when people know you can vibe code something, they will feel permitted to demand even faster changes (and your upstream libraries and external systems will change faster too), so formal verification will be less useful than ever.