True. Most of the arguments I'm seeing, though (unlike yours and Stripper13's), are that the review somehow isn't respecting Halo, that the reviewer is a heretic for suggesting that it use a mechanic that is not normally associated with the franchise, for suggesting that it deviate from what "makes it Halo".
I agree that it is not particularly well reasoned or backed-up, and that it needs far more detail as to why those mechanics would be beneficial. But once again, the level of outrage is shocking. Poor reasoning and writing don't get this kind of response...poor reasoning and writing, combined with giving an uncommonly low score to a well-known franchise, combined with stupidly attempting to defend himself get this kind of response. And it's just...too much.
I'd agree with that. If it had been in the 9 range, there's a chance that the content of the review would have been swept under the rug far quicker (but laughed at all the same, just like the IGN review). The 7 only highlighted the review. Personally, I had read his first response before I knew who he was, who he wrote for, and what score he gave - and I still replied to get him to see why Halo does not need ADS. I would not have come across the review at all, had it not been highlighted in this very thread.
Of course, coming to defend himself may have been a good idea if:
1) He had any sort of ground to stand on to defend his position - and I think it's kind of obvious at this point that most of his statements regarding possible change were ridiculous.
OR
2) He was able to write anything substantial enough to quell some of the reactions. His 2nd reply was fluff. Some statements implying he knew more than we though he did, calling out someone for questioning his intelligence, and some more broadstroke statements about ADS. It served only to fan the flames - and for me personally, bring more attention to the fact that maybe he wasn't the right reviewer for the job... because even after some fairly articulate explanations of WHY he was 'wrong' - he still wasn't able to see it, or defend himself.
I don't feel bad for the guy though - he gets paid for this. Writing reviews is easy - I could play a game and do a significant write-up on it, assign a score, and submit it for people to read. The challenge, at least to do the job well and earn your salary, is to articulate your position (whatever it may be), develop your arguments and do some homework on the WHY. I feel for the poor reviewers who got handed the first few copies of Demon Souls - they had effectively nothing to work with. I'm not sure how the reviews went down, but I don't imagine it was an easy job write an informed piece. The same can't be said for Halo however.
Edit: It's a shame that you received threats for a review. The combination of franchise fanboyism (that stretches to movies, comics, superheroes etc.) and Internet anonymity is always going to be an issue. Theoretically, a reviewer should be able to articulate himself and tell their audience why Halo 4 only received a 1/10 score - and that would be it... people would read it, consider his position, debate it among themselves (ask the reviewer questions perhaps) and move on. I could only imagine the negativity a reviewer would receive if they rated it a 1/10 though.