Funnily enough, I do actually have a problem with "Raiders" (and that's an overly broad term) having access to top-end gear exclusive to 25-player raids.

Equal effort should gain equal reward. Now I'm certainly not suggesting that 1 run of a 5 player Heroic is equivalent to 1 run of a 25-player raid, as a former raider myself I know it's not and it's not by a lonnnngggg way. There should however be a point at which the ultimate gear is available via multiple methods. I know that won't ever be the case, but it doesn't change what I think.