Now honestly, even if it's organic matter that made it over with the rover, if it's reproducing and surviving on the planet, that's plenty interesting news.
You're exactly right - the "exciting" news might not be that life still exists on Mars, but that it easily could. This might have very interesting implications for terraforming.
Neither Breivik nor McVeigh was a Christian by any rational definition of the term.... While Breivik called himself a Christian, he explicitly said that he did not believe in the religion.
No TRUE Scotsman is a mass-murderer, either.