From the PR:

  > "Thousands of years later, Albert Einstein assumed that space and time were continuous and flowed smoothly, but we now believe that this assumption may not be valid at very small scales," Quach said.

My only source of knowledge is having read a pop-physics book or two, but I thought it was well-accepted that at "small scales", the universe is very non-continuous and chaotic?

And, reading the PR, it doesn't seem to be that breathless nor does it say it's overturning the Big Bang. It read more like "hey there might be another thing that happened during the Big Bang and that might make 'cracks' that we might be able to see".