I'm not sure that the examples given represent evolution, or even growth, but they show how language churns and words develop. Of the ones mentioned, I would expect only a handful to really last more than a few years — they are more witticisms about a current social trend than profound changes.
The most interesting was "Mx" as a gender-neutral title (comparable to Mr or Ms). That one will be interesting to watch.
3 Cool Ways English Evolved in 2015
It’s hard to keep up with a language evolving as fast as English. Before you know it, a new turn of phrase has come and …
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Pshah. True cant shan’t be made exolete. To obtestate, the ingency of the Queen’s Tongue shall ne’er adnichilate by the vulgar vernacular. It just ain’t happening.
I don't think the increase in portmanteaus is worth noting, even if it's as large as they indicate (without backing up their claim with numbers).
+Scott Randel It would be interesting to see numbers, but it's something I've (anecdotally) noticed. However it's unclear how many of those words are flashes in the pan.