I’m not getting into this. But what I picked up was the use of being “too academic” as an explanation – as if being “too academic” were a bad thing. It’s not, not always .
Here’s my list  of the main characteristics of being “academic:”
Has this been said before?
Academics research thoroughly what has been written before on their topic and related concepts, in one or more disciplines. They don’t reinvent the wheel. Lack of familiarity with previous literature reduces one’s credibility and increases the risk of reinventing the wheel. Keyword: library (yes, library!)
I remember of a dear and very much appreciated analyst who was working on a report on communities and was crowd-sourcing the definition of “community.” There are full library shelves on the concept. Read ’em. Cite ’em. Think of the literature review as a different from of crowd-sourcing 🙂
Claim + Supporting evidence
Academics follow this formula very rigorously. For every single claim (every single sentence, sometimes word in a publication), you need evidence.
Claim: Tomatoes are red.
Evidence: ??? Can be empirical (inductive) – based on observations, surveys, etc. or can be a logical argument. In which case, avoid fallacies.
My dear mentor  would question every single statement in my papers and in the process taught me that you cannot make a claim without solid supporting evidence. And when you only have this much evidence, you make a smaller, more specific, claim.
So, if: “The public has been ignored in public relations” = claim, what is the evidence for that? What kind of evidence would you provide, and are you sure that the evidence is sufficient and valid?
Academic writing is specific & precise
… and that’s what makes it inaccessible. Oh, why do we need the word “stakeholder” when we have “public”? Well, because we define concepts and we need words to refer to the specific concepts. We need to avoid confusion with the general usage of the word. Inaccessibility is the downside.
The upside is that, good academic writing is not vague – it has (almost – see) surgical precision. You need that surgical precision to stand up to scrutiny, to make sure you don’t over-generalize, and that there’s good fit between the evidence and the claim.
I strive to produce both academic AND accessible writing, and maybe so should you. Go ahead. Be academic.
 Academic thinking will teach you to avoid overstatements and over-generalizations; to be specific if possible, inclusive or ambivalent otherwise.
 I can hear my dear mentor’s  voice: Why do you put only these things on the list? How do you know you’ve exhausted all possibilities? What are the criteria for inclusion/exclusion/sorting of the list? Beware the laundry list fallacy.
 Carl Botan
This is why I recommend graduate school. I don’t care if it will make you more money or get you a better job. It will sharpen your mind, enhance your critical thinking and problem-solving skills, and teach you humility – at least you know what you don’t know, and you learn to question everything, your work and yourself included (downside: bye-bye, self-esteem!).