I have 2 problems with this feature. Both are related to the level that this thing is.
The first is that its a class feature in an even level. All other classes features are in odd level so to put this in a even level will open space for mistakes once that players are already used to just getting feats at these levels and barely checking the class. This will only create mistakes without a good reason.
The other point is that this thing is basically an adapted Breadth feat. But the Breadth feats are level 8. Once this is a features why don't put it in a earlier level live 7 or 5?