Unless the JSON "experiment" was considered no interest, just focus on getting it back.
It isn't the first time, Reza destroyed things here without prior vote or notice, you should be tired of that, but I assume it would be a waste of time asking him not to do so;-| There was some sort of vote, but it was mostly to rubber-stamp Reza's ideas and suggestions. I dont't recall real input other than me suggesting to keep attribute names like so many other repository providers do regardless of them using XML, JSON or whatever they prefer.