I've said this once, and I'll say it again:
Moderators, please, do not lock this because of the presented opinion, or fear of a flame war. Just because he's bringing forth an opinion against what most people say, doesn't mean it needs to be locked. He's presenting his opinion in an appropriate manner, and brings forth good points.
If a flame war starts, delete the flaming posts. If it still continues, then lock it. Locking isn't the only solution.
If you must lock it, lock it only when substantial issues arise, and leave a few sentences explaining why.
I'm not of high authority, so I'm nobody to tell you what to do, but I'm advising you to please, don't lock this out of dislike for the idea presented.