Quote Originally Posted by Lone-wolfe-02 View Post
A set of rules would have been nice as to how the design has to look because half of these aren't really tanky should be something everyone can wear.
I disagree. Remember, we are neither seeing all the entries nor voting on the designs. These are the top armors S.E. liked the most. They liked the non-traditional designs.

The contest's rules gave a lot of leeway which allowed the participant's imagination to come up with all sorts of interesting designs. The developers shared the top picks so we can admire the entries and have fun discussing them.

In the event that an entry other than the grand prize winning entry is deemed to be excellent, Square Enix may choose to implement it in the future.
Taken directly from the contest rules. S.E. can choose their favorite tank design and have other designs to possibly adapt to the game for other roles or classes. It's a win all around for the participants and the game.