I've now read through most of the material and I don't see any of it that brands Aetius as a raving anti-Epicurean, so I wouldn't think he would be tempted to misrepresent Epicurus generally (or at least, not more than seems commonly the case).
My first impression is that the whole thing is a fairly small-"a" "academic" recitation of the various positions, not an argumentative piece at all. Early on I noticed some references to some theories about the gods (I think by Plato?) as nonsensical, but not much else in terms of forceful commentary. I don't see that wikipedia brands Aetius as belonging to a particular school, so it will remain interesting to me to try to determine where his preferences are found.
Also do we know anything about the meaning of his name? I doubt it means anything but I see the better known but significantly later ancient by this name was a Roman general:
Flavius Aetius[a] (also spelled Aëtius;[b] Latin: [aːˈɛtiʊs]; c. 390 – 454) was a Roman general and statesman of the closing period of the Western Roman Empire. He was a military commander and the most influential man in the Empire for two decades (433–454). He managed policy in regard to the attacks of barbarian federates settled throughout the West. Notably, he mustered a large Roman and allied (foederati) army in the Battle of the Catalaunian Plains, ending a devastating invasion of Gaul by Attila in 451, though the Hun and his subjugated allies still managed to invade Italy the following year, an incursion best remembered for the ruthless Sack of Aquileia and the intercession of Pope Leo I.
Aetius has often been called the "Last of the Romans". Edward Gibbon refers to him as "the man universally celebrated as the terror of Barbarians and the support of the Republic" for his victory at the Catalaunian Plains.[4] J.B. Bury notes, "That he was the one prop and stay of the Western Empire during his life time was the unanimous verdict of his contemporaries."[5