This is a theoretical proposal, not an experimental result that confirms the decay. Apparently, some detector are sensitive enough to see this decay IF someone runs the experiment and filter the all the data (that is not an easy task).
Anyway, IF confirmed it can be huge because it means protons can decay. Everyone thinks protons can decay extremely slowly, but there is no good theory about it and no one has seen one of such decays.
For context:
This is a theoretical proposal, not an experimental result that confirms the decay. Apparently, some detector are sensitive enough to see this decay IF someone runs the experiment and filter the all the data (that is not an easy task).
Anyway, IF confirmed it can be huge because it means protons can decay. Everyone thinks protons can decay extremely slowly, but there is no good theory about it and no one has seen one of such decays.