The hunting version cannot be carried in "Low Ready" with the butt over the top of the arm, which is the preferred military method of carrying for speed of present. "Low Ready" also minimises the chance of nearby victims interfering with the weapon.
You have also ignored the problem of magazines that carry in excess of - say - 5 rounds. The weapon you illustrate has the 20 round Magazine. Anyone needing 20 rounds to take down a deer or wolf is probably incompetent.
Leaving aside the issue of weapon form, i.e whether an assault weapon is more dangerous, look at the problem of the round used
The .223 produces devastating wound characteristics (see below) whilst being a comparatively short ranged weapon. Given this why use such a weapon for hunting?
(From Olympic Arms test page )
Dr. Martin L. Fackler, observed when he was conducting wound research for the U.S. Army several years ago ("Wounding Patterns of Military Rifles," International Defense Review, Volume 22, January, 1989), that in tissue simulants such as ballistic gelatin, , the 55-grain, M-193 military bullet lost stability, yawed (turned sideways) 90 degrees, flattened and broke at the cannelure (groove around the bullet into which the cartridge case is crimped) after penetrating about four to five inches. The forward portion of the bullet generally remained in one piece, accounting for 60% of its originally weight. The rear, or base portion of the bullet, broke into numerous fragments that may also penetrate tissue up to a depth of three inches. Dr. Fackler also noted that a relatively large stretch cavity also occurred, violently stretching and weakening tissue surrounding the primary wound channel and its effect was augmented by tissue perforation and further weakening by numerous fragments. An enlarged permanent cavity significantly larger than the bullet diameter resulted by severing and detaching tissue pieces
And
In his study, Fackler remarked that in abdominal shots, "There will be increased tissue disruption (beyond the bullet diameter wound channel) from the synergistic effect of the temporary cavitation acting on tissue that has been weakened by bullet fragmentation. Instead of observing a hole consistent with the size of the bullet in hollow organs such as the intestines, we typically find a void left by missing tissue up to three inches in diameter." However, "unless a extremity (peripheral hit) is sufficiently thick like a thigh, or the bullet does not strike bone, the round may pass through an arm for instance, causing little damage from a puncture type wound."