I don't have a Devils Vintage (CCM) jersey yet; that's why I contacted SportsK about their photo of that jersey.
What I do have are 1) a white Devils Edge Premier 1 (i.e. Reebok vectors logo) that has a perfectly attached crest and 2) a red Devils Edge Premier 2 (i.e. Reebok wordmark logo) that has a crest that isn't attached quite right. (I also have a few older CCM replicas that I picked up for cheap at Ollie's Bargain Outlets.) Neither of these Reebok jerseys are authentics; they are Edge Premier (i.e. replicas that sell for $120-125 or so at most legitimate and some illegitimate websites). I bought both of the jerseys through SportsK, roughly one month apart (white jersey was bought first).
Incidentally, I did look at the tags on the Devils Vintage CCM jersey on both the SportsK website and one of the popular, reputable websites (probably either IceJerseys.com or CoolHockey.com, I can't remember which one), and the neck tags looked essentially the same to me.
They are not even remotely close. Below is a comparison shot. The one on the left is a picture I have taken of one of my official throwbacks I got at the NHL store in manhattan. The exact same tag appears on my other two throwbacks; one from Modells back in 2010 and one from J&S Sports Gallery. The one on the right is from SportsK. They are not even close. After the Edge's, the NHL vintage line is the most counterfeited and the one on SportsK looks like the tagging used by those knockoffs you see on ebay for #29 Brodeur with the wrong font and everything. I have seen one of these in person and they look decent, but there are a few details wrong and the sizing is wonky, usually with the sleeve lengths being too short.