When I saw the movie, I went into it thinking of what the filmmakers were going for, which I think was to show a possible backstory to the myth that would've later become the Illiad. In many ways, it demystifies the legend and brings it down to a more human level, and at the same time the filmmakers were making a throwback to the classic sword and sandal epics.
I think this edit could be interesting as I mentioned, but from my point of view, the Trojans were the good guys of the story as opposed to the Greeks. This edit takes the opposite point of view and does so by dehumanizing the Trojans and glorifying (by cutting acts of barabarism) the Greeks. I guess the arc, as forced as it may have been, for the character of Achilles was to show him as a brute and monster, and then bring the character to a point where he is a member of society with a full range of emotions (which ultimately leads to his downfall).
Is the Gabriel Yared score available anywhere in its full form? I knew some excerpts were posted to his website.