Is Super Desert not only a speculative possibility. Not proven to be either dominant or incomplete dominant(codom) with any degree of certainty other than it must be one of the two.
As for why it is important, it is a stellar looking morph that has not seen its' full potential due exclusively to the sterility/breeding issues with females.
If this turns out to be a line of Desert or a desert lookalike without the same problem, projects will explode offering enthusiasts new healthy combinations.
If it is instead a case of one morph cancelling out the small oviduct problem growth will be much slower since there is little known about morphs causing unusually large oviducts.