This is kind of like the reverse of the sister comment, which I agree with: https://news.ycombinator.com/item?id=47242699

The general point is that separating PM and eng doesn't make sense any longer. Which subsumes which is an interesting debate.

Your argument that 4.6 Opus makes the engineering skill set useless is totally false and maybe shows you haven't built anything complicated, but it is possible that Opus 5.2 will get there.