No surprise, influential Politico reported on this. Here is that coverage.
Of course, Warren also does cool in print. Her book "A Fighting Chance" has been well received as, well, hipster enough for a member of the establishment.
Cool talk is Warren's best ammo against Hillary Clinton. For some reason, Clinton, unlike her husband who knew the power of cool when running for president, can't do cool. Not in talk. Not in print. So, Clinton comes across as old. It's binary. Either you're cool or you're a geezer.
Warren will probably be over 100 years ago and still giving us cool. It's a rhetorical gift she has.