You'll note that he's updated it (addressing the torrent of nerd rage) and the update is longer than the original article. I think what he was trying to say is that gameplay elements are similar to Gears of War, but even in his correction he still insinuates that Warhammer is ripped from Gears.
Frankly this guy doesn't know what he's talking about, it's further evident when he says Harvest Moon debuted in 2005. It came out on the DS in 2005 but the franchise is far older than that. I remember playing it in 1999 on the 64 and according to a two-second Google search it first came out in 1996.
On another note, people in the comments should avoid the ad hominems. Let's be a good example of our community and stick to refuting his inaccurate assumptions.