it isn't irrelevant just for the simple fact that the day before this was announced, many people believed "yeah, there may be earth like planets, but there's probably just one, probably so far away, that might not hold life, that might not be intelligent, that might not be spacefaring, that might not wanna travel through space, that might not find us, and so on and so on...
It was thought that the likelihood of a planet that could support life (as we know it) was uniquely microscopic...
But billions nearby (astronomically) not a couple... billions
I know chances are we'll never explore one in my lifetime unless we invent some new technology that allows faster than light travel... which probably would be second or third page news, since by that time, Jersey Shore spinoffs will number in the hundreds.
It is still major news