It's a fantastic discovery, a 30 year wait worth every second to those who formulated the original theory.
What this does show is that it's meaningless to use time when not in relation to the observable universe. We use time relative to light (which is basically all that the CMB is at a wavelength invisible to the human eye) speed in a vacuum and this light appears to be 14billion years old, so we say that, relative to us, the observable universe began that long ago.
However (and this is where the mind melt comes), the expansion/inflation of the universe is faster than the speed of light, yet we are aware that if you travel faster than light, time goes in reverse. How do you fathom that out - that the thing which brought about the universe in its current observable state travels at a speed that would send time the other way? Huh? This is why it is totally incoherent to talk about time without the universe. It just makes no sense to us with our limited language and conceptualisation.