You're over-simplifying it, of course, because it wouldn't necessarily just be down to Northern Lights as to whether he can provide the information demanded of him. For a start, the "wolf expert" may not have agreed to have his name made public. He or she may well have provided their opinion verbally and informally, possibly on the condition that they remain anonymous, and may not even have been aware of the status of the group of people being provided with the opinion.
Secondly, it is of course perfectly possible that Northern Lights is a minor player in the group, and that the "wolf expert's" opinion was provided to others and relayed to NL only verbally and without any details. In other words, although someone in the group may have the information that rockinkt demands (rather brusquely.......I'd resist, too, if asked anything in that manner), it may be something that NL doesn't have access to.
Finally, of course it is perfectly possible that NL is making the whole thing up.
The lack of accession to rockinkt demands cannot be construed as only leading to the final of those three alternative conclusions, in my view. And frankly, who gives a monkey's anyway? Take the recording to your own wolf expert if you are so interested in a wolf expert's opinion. Demanding someone else do it for you seems to be just to score a few internet debating points rather than an attempt to examine the issue more deeply. ("You" in this instance being entirely general and non-specific. Not directed at anyone in particular).
Mike