I can think of two things, first is that in order to know the craft well enough to shoot those 50rolls of film with a high price Vogue Model, the photographer has probably shot hundreds of rolls of film a month for a long time to be able to reliably get the look that they want, remember that their is no cheating by looking at an LCD. when that film comes back, the model is already in the next city, the clothes have gone back, and their are no Muligans or Gimees.
and figure that their are a LOT of folks who would like the privileged of being asked to work at that level. so Just that niche is good for a good market for film.
Second, their is a definite film look that is not faked on a digital that is in demand. Here in Canada, the Globe and Mail often with make it a point to run a totally legitimate film image, complete with Black borders and Kodak or Ilford edge print, when they are doing a feature of an executive in business, or an essay about issues. These are generally shot by a gentleman by the Name of Fred Lum, (who is on this board but I can't remember his user name) Again, this is someone who can nail a shot, and uses anything from a folding Brownie, to a haselblad or a 5X7 camera. When flipping through the paper, any of Fred's shots will instantly stand out on the page. (and yes, he also uses "Un Camera Numeric" if that is what makes the shot)
And lets face it, photographs for publication are only one small part of the market.
if Team Adox is seeing an increse in film sales, I would give the statement credit, as they are one of the major dealers in many brands of particularly B&W film. (besides the heroic project of bringing back many of the "special - out of the ordinary" products made famous by Agfa and Forte.