Thanks to the lightfall reveal, we can confirm that the witness is not controlling the darkness, he is leading the pyramids but not the darkness.
How ?
Its because of strand. According to the dev, strand is a new darkness subclass which was discovered by the guardian which means not even the witness knows it.
The two difference between these 2 subclasses are:
Stasis was given to us (sort of) - witness told us to go to europa “ Ancient power awaits you in europa” but strand is different. I think this is a big issue for the witness since the darkness is starting to favor the guardian more than him.
-
We’ve known that since Shadowkeep, when we got Unveiling. The Witness is just a Darkness user whose top dog. The originator of Darkness is the Winnower.