Nice baiting article. This feature can be turned off with a command, will have a kill switch in the settings and will be fully encrypted when it ships. It's called "beta" so that mountains don't form out of mole-hills, but hey ho. Mountains it is.
I suspect that the people who indignantly leave Ubuntu because Canonical is trying (how dare they!) to add features are the same set of people no-one will miss when they're gone.