I work in this field[0] and in situations like this always point out that "discover" in this sense is like Amerigo Vespucci "discovering America".

There were people here before it was "discovered" and there were people using this taste receptor before we knew of its existence.

This is an important distinction because what we've learned is not about new flavors or aromas - but the psychophysical pathway that activates perception of that flavor.

This doesn't allow for us humans to perceive anything new but it could allow for the synthesis of new flavors or better modulation of natural or synthesized flavors.

I work on the modeling and prediction side of human sensory perception, but do have prior knowledge of psychophysics and am happy to answer further questions.

[0] www.gastrograph.com