User blog comment:Astanas7/Are the new Dom items actually a joke/@comment-7481207-20131218102440

If you consider the unique passives as: "Crits deal 30% bonus AD extra damage" and "Crits deal 50% total AD bonus damage", the second passive, while not truly the same, is an improvement over the first.

And seeing as they are removing Infinity Edge from TT and Dominion, I don't think its a mistake. Still think they could just change the build path for IE rather than make a new item thta is the same but with the altered build path.