I am saying what scientists are so excited about today will likely be tossed aside because it was wrong tomorrow. But that's science, isn't it?
Yes.
It's not like scientists have completely re-written everything about how they understand the world with this finding. We simply now know that grass probably existed 10 million years before we thought it did.
Also, what's wrong with revising your ideas in light of new evidence? Would you rather we still held the view that the sun revolves around the earth?