Earlier quoted context omitted.
Funny, because I'd say that jargon is a facilitator of communication between knowledgeable people. It can always be looked up by those with the interest but not the knowledge. I end up doing this all the time, and appreciating reading dumps of domain knowledge and perspective. Meanwhile, writing everything for a lowest common denominator audience creates real barriers to communication - both destroying communications…
It would take the author a few seconds to type "remotely operated vehicle" (or whatever it stands for), and therefore save hours of time for people who need to look it up. Not to mention...I almost skipped the article because I didn't know what ROV stood for. Lost audience. Your argument is that lots of experts on remotely operated vehicles would scoff at the article because it didn't use their "inside" jargon? First…
The proper comparison isn't the author's time versus the readers looking it up, but rather readers encountering a term for the first time having to look it up versus every other reader having to read overly verbose writing that reiterates basic definitions rather than getting to the novel points. If you're as interested in ROVs as you imply, well now you know for all of the other times you will read the term. If you're really expecting to never encounter the term again, I wonder why you're reading a technical engineering-adjacent forum.
And yes, effective communication within "like-minded cliques" is exactly what is facilitated by jargon. Personally I'd rather read concise technical descriptions from such direct communications (doing the work to learn what I don't know from context or external sources), rather than having to skim through watered-down general-audience "edutainment" articles and read between the lines to figure out the specific touchstones being referenced by canned general phrases.