I think pointing out flaws in his game (same has been done to Gilroy) is hardly being "dead set" against him.
There are some people go over the top, but the fact many people wanted Gilroy to travel over Zebo has been misconstrued as a slight against Zebo.
I know all that and I considered it before I posted. I have no doubt however that an awful lot of rugby people have a deep bias against Zebo and are looking for any chance to demean him. This forum is riddled with examples of this which goes so far beyond genuine criticism to actually become a dislike of him and a desire to see him make mistakes as much as possible. The poster you are defending is actually using the fact that Zebo has scored a try in order to construct an argument against his ability as a rugby player. Madness!
And for the record I would also rate Gilroy as a slightly better player than Zebo at the moment (although I would say that both are equally as weak defensively), but surely any honest, objective rugby follower would see that Dave Kearney is further along in his development than both of them. If there had to be one of them on the plane to NZ (no idea why Kidney couldn't have brought two or even three of them however), it should have been Kearney who was outstanding for the Wolfhounds and who was actually in the match day squad for the Wales game during the 6 nations. But very few people are mentioning his name and the whole debate has been reduced to Zebo v Gilroy which doesn't make much sense to me.