Who really needs this thing? Anybody that is able to use EURt is also able (and even more inclined) to use Bitcoin. EURt is like offering a transportation service where passengers sit in horse buggies that are loaded on pickup trucks.
The use-case for me is decentralised exchanges. Bitsquare.io handles at least some of the Tether coins, and I believe also a different scheme for price-static surrogate coins. The reason should be obvious: it's not possible to store (and therefore trade) fiat directly when using decentralised exchanges.