As the security researcher who wrote the sentence, I fully understand the apprehension for using 'cyber' but the sad truth is it seems to be the easiest way of conveying the message to the general audience.
I also wholeheartedly agree that 'cyber' as of now is a dangerously poorly defined concept that gets thrown in front of pretty much any other word. Hopefully someone will step up and come up with a mutually agreeable definition for it soon. And then get everyone to use that definition, which is the real struggle ...
Cyber is a poorly defined concept that we need to reform, but given its massive mindshare and the geopolitical reasons* around its use we are probably stuck with the word (but hopefully not the current definition).
* There is a reason that the US military went from talking about information-warfare to cyber-warfare and it has much to do with Russian positions on information sovereignty.
(Not about what the title says)