In that short vid, the ALL weapons are white, including those from the Vorchans, the Sentries and even the Starfurys.
Weapons which normally are pale yellow or pale blue. Considering the poor quality of the clip, you can't tell what color they really are.
I do however agree that the the effects likely aren't finals and might chance.
What I'm slightly concerned is that the EA tactics seem to be a complete mess. Instead of using formations to maximize the effectiveness of their interceptors when the superior long range firepower of the Warlock would surely be formidable, they seem to rely on brawling. I of course do not now the whole tactical situation or the events leading to it, but I hope the battles aren't all pretty carnage without tactics...