Going dark may not have been the reason that the table have turned, but it was part of the process. And the table DID turn.
There is a time to be dark, a time to let your WAW do all of the initiating of contact, and even a time to do a little pursuing... It is all part of the process.
Lots of good stuff in the process. A lot of reasons for it. It has worked well for many people in may situations. But if it were 100% appropriate for 100% of the situations, then this site would be full of 100% success stories.
It's a tool, that's all. It's not perfect for every job. Applying it blindly without consideration for the uniqueness of a situation is suicide.