Yesterday's Ukrainecast (What do we actually know about the Istanbul peace talks) addresses this question. It's something I was puzzled about and essentially it's due to various nations being wary of hurting their own economies.
I was initially baffled.
But then I realised that once it is built (and provided ten years worth of jobs for the construction workers) we can decide not to actually use it. A bit like HS2.
Someone's hacked that together in Photoshop - you would expect some consistency in the collar designs.
But I do like the zig zags breaking up the stripes on the home kit.