So, dispelling that myth in wolves may be an attempt to shake off the pseudoscientific idea that this concept can be used to describe human social structures.
Of course, not being based in science in the first place, a scientific appeal has no chance of changing anything. Which is why it gets rewritten every few years.
Maybe there is a myth of "alpha males", but the article doesn't expose it, it doesn't even talk about it beyond a single sentence.
The last fifty or so years of western literature beg to differ.
On a metaphorical level: pick your favorite male-focused self help pop psychologist. There's a reason the phrase "sigma male grindset" was coined to make fun of these people.
https://books.google.com/ngrams/graph?content=alpha+wolf&yea...
TV Tropes also has a good collection of occurrences in popculture, including literature.
https://tvtropes.org/pmwiki/pmwiki.php/Main/AlphaAndBetaWolv...