I don’t think so? Where?
Alex Afrasiabi Creative Director for wow said the following in an interview with Eurogamer:
https://www.eurogamer.net/articles/2018-11-08-world-of-warcraft-and-the-masterplan-for-sylvanas
"I've heard these discussions on the internet about 'she's going off the rails', but is she? I've been writing Sylvanas personally since 2006, and this is pretty much - the Wrathgate and the Blight and the Forsaken - in character. Those were all under Sylvanas' orders. What we're seeing now is an escalation of the plans Sylvanas has, clearly, and we're in the middle of that.
This was the first/only mention of this, there's been no clarification since as far as I know despite it being asked about on multiple occasions no Blizzard staff has confirmed or denied it.