In reading his article, I don't know if I share the same criticisms. To me, word count is an entirely false metric since in most cases, a concise sentence can more often deliver a better story than a wordy one. You seem to have struggle grasping what his fourth section should truthfully entail. Are you looking for a section to better explain how the tips are used for combos, or what? I appreciate the constructive criticism, but I guess I want something more concrete as to your expectations.
The word count results are not a product of Marth's article somehow achieving a high quality with less words than the others; its depth.
Compare Marth's article to Falco's. Look at the overview. For Falco, It starts with a brief intro of his character and that the P:M team restored him to his former Melee glory. Then, the article proceeds to go in depth as to what makes him good (speedy attacks, lasers) and finishes with describing his recovery weaknesses.
Marth's overview begins with a joke (tiara jab) then proceeds to state his Brawl and Melee metagame (again, jokingly), then it quickly states that he is his melee reiteration and that tipped fsmashes are good. (But not without getting lulzy on his appearance)
With Falco, we got his strengths, weaknesses, and specifics. And this continues throughout the article, readers not only get a description of what makes Falco good and bad, but why. With Marth, its short blunt lists and jokes
Now, if you believe the Marth overview is superior, lets put Falco into its format!
The arwing flying, anthropomorphic bird from Star Fox returns to his fearsome Melee form in Project M!
Brawl Falco may be all about D-throw chaingrabs and laser lock shenanigans, but this Falco is about laser approaches, powerful aerials, and of course, pillaring. He has all the tools that made him top tier in Melee, and that means that despite he can't fly, he is no bird to be trifled with. He is a combo and pressure beast, and though the tech skill is tricky to master, an early dair gimp can change the tide of a match.
Now do not tell me that this isn't inferior to the current Falco overview. Because it certainly is.
And to answer your question, here is what I think Marth's article should be like:
OVERVIEW
Like Falco's, explains restoration, gives strengths and weaknesses and give insight into his playstyle. For instance, Marth is an efficent low percent killer and versatile edgeguarder, but falls flat to reliable high percent killing, no truly advantageous high tier match up, and vulnerable to combos.
RANGE
In combination with explaining his rebuilt attacks (including his fully restored neutral b) you can describe what this range offers Marth (i.e. utilt/fmash through platforms, grabbing opponents out of recoveries) You should also consider mentioning that his Usmash is getting nerfed by reverting to melee and side-b changes. Short of these minor things, there really isn't much you can say.
COMBOS
Describe the tip/base system and explain his great set ups and kill potential at low-mid percents. Also explain his aerial combos, chain grabs, and perhaps even his up-b as a killing move.
EDGEGUARDING
Since discussing the tip system is lumped into the combo category, edgeguarding should be his fourth since no one edge guards quite like Marth. Marth has a great ledge hop dair, neutral A interceptions, fsmash edgeguards, dtilt edgeguards, neutral b edgeguards and offstage fairs.