I have trouble making sense of your comment.

You are replying to someone explaining that their professional experience shows that the answer can be neither generalising anecdote because what works for one will not necessarily work for another nor simply broadly applying statitics because, to oversimplify, something which works perfectly for 20% and not at all for 80% as a terrible average rate of success but is indeed what you want if you are amongst the lucky 20%.

What are you complaining about in this take exactly?