These witnesses did not say they were hands up in the air surrendering.
And if the video is any indication of how the hands were up, that fits perfectly with the hearsay account of taunting the Officer, not up as in surrendering.
Then we have both Dorian and the girl changing their accounts as to how the hands weren't actually up. Likely they have been told the surrendering bs isn't gonna fly.
Starting @ the 01:24 mark you can hear her change from her previous account to the new one of they "were just slowly going up, it probably didn't even get a chance to get all the way up there ..."
She is lying. Just as Dorian is.