Astroboffins ̶d̶i̶s̶c̶o̶v̶e̶r̶ speculate ...
Let me recap the scientific method for you:
(1) Scientists dream up a model that might explain our world ("hypothesis").
(2) Scientists compare their model with observations and validate or reject their model ("validation").
If you make a new observation that requires a new scientific model, then you made a discovery. If you create a model that is not validated by observations, as did the authors of the study described here, then you just speculate and all you have is a hypothesis. This project clearly is in stage number (1); there is no discovery.