That's what I thought first but the article mentions the aircraft being "new A320s", where as the Virgin ones are about 10 years old, and also mentions them being delivered at the end of the month, and as far as I know, EI-EZV has already been delivered, with EI-EZW being delivered in the next day or two. You probably might be right, may very well be seeing as this is only a blog and not an official source, but hopefully something more to it.