After finally getting around to reading the news article, I'm not convinced very many people even read all of that. There are enough caveats in there to cover about all the bases, unless you start reading with an agenda already in place.
Then why does the article headline a conclusion?
Maybe the article authors never read the research paper either.... could be yet another case of writing news with an agenda and bias already in place.
Here is the research paper. Hopefully it will remain available without cost for a while.
Weak spatiotemporal response of prey to predation risk in a freely interacting system
besjournals.onlinelibrary.wiley.com
I haven't fully read the paper yet.
From a quick glance, I'll note the research does not address "fear", just landuse.
"Our results suggest that predator–prey interactions may not always result in strong spatiotemporal patterns of avoidance."
Mammas gotta make a livin'....
Prey species HAVE to take risks to survive. By no means does this equate to a lack of fear when exposed to those risks.
As BrentD noted, researchers have qualified analytical techniques to determine stress levels in ungulates based on conditions such as predation concerns.
What the researchers view as evidence of a weak spatiotemporal response may actually be the conclusion in conjunction with other survival priorities.
The Elk have NO CHOICE but to inhabit these areas regardless of the presence of wolves.