Strictly speaking, no. The EM-drive uses magicphysics to supposedly be more efficient than a straight photon drive.
My apologies, also to filippe, I did not know the details of this drive. EMDrive sounded like they just use radiation pressure, like we have already done, so that would have been a photonic drive again. ...But this is something different. I now vaguely remember having read that wiki before, well.
It will probably be like the spotted faster-than-light neutrinos of Gran-Sasso, or the Voyager probe who mysteriously accelerated once entering interstellar medium, - all measurement mistakes.
However, my hope and feeling is that this microwave chamber actually does something different. The enormous interference from all the echos therein could indeed impair with "the universe" in such way that we see a small casimir-effect grasping from outside (thanks to the shape not uniform and directional). Because that much interference could cause a significant enough portion of virtual particles to be impossible to spawn, hence higher pressure from outside than comes from inside= force. That would kind of be "pushing of the universe" indeed, wherever that counter-impulse may land.
Hehe, you know what? If microwave chambers can be used to generate casimir-effect, then we would actually got ourselves hand on an important warp drive ingredient
(*1): Positive Space curvature, slightly as it may be in potential. Remember that anti-gravity talk from yesterday?
I still feel like this concept is wayyy too much on the edge for now though to be accepted in harder science Aurora. Just think of the hindsight ridicule if this turns out to be yet another misleading path.
*1=(not that there aren't enough counter left..)