Don't assume that just because something is offered in the store that the masses will buy it.
The main problem is not that some people might or might not buy this new armour in the Store. The main problem is not the impact these items may or may not have on the in-game economy either.
The main problem is that Turbine is crossing a line with these items and that it seems not impossible (or even unlikely IMO) that they might offer more and better items with stats on them in the Store in the future. If we let these low-level armour pieces pass without a protest, we may see other gear (armour, weapons, jewellery) in the Store in the future, stuff that is actually better than what can be obtained by playing the game and that could evolve into the new standard gear for level-cap characters.
In my opinion, this low-level Store armour is a weed that needs to be pulled out before it start to choke the plants growing around it.