We're organized in small teams around specific products. That leads to mob programming being a good fit, so code reviews and knowledge sharing is organic. This gives us an opportunity to commit to main and do direct deploys to production. Treating every commit as deployable is key, but it drives good practices.
The largest benefit of mob programming (or software teaming or ensemble programming) is the continuous knowledge sharing. Instead of trying to figure out context during code reviews or syncs, you do it organically all the time. Developing together builds a tight team where people grow together.
Hence my question was about programming rather than engineering. Composition could, for a long time, be a task humans do whereas the components are generated by AI.
They're likely on the hype train, I'll give you that. Doesn't mean next generation won't be doing software engineering completely different from how it's done now.