No need for this feature whatsoever... Believe me.. there are plenty of ways to obtain templates. Just don't be lazy and do some research.
Not all armor has a template version of it in the game. Sure, a lot of them do but far from all. Higher level stuff especially - there's absolutely no way to get an "eligible as template" piece of armor that looks like the Nexus Gear.
Though the higher level stuff should be very expensive, or possibly craftable only.
Whether all of the armors are allowed to be used as templates, or they just ensure that all of the various armor styles can be crafted as templates, I'm for it.
Nothin like getting to level 60 and realizing that you look the same as everyone else and can't ever go back to the armor you loved most.
Edit: Like others have mentioned, I do like the idea that you shouldn't be able to use a template from gear that you can't currently equip. My level 5 character on the Island of Dawn probably shouldn't look like she's wearing her level 60 t12 gear.