I'll believe it when I see it. They don't cite where it suggests in any capacity that Wi-Fi is ever acceptable for Secret or TS data transmission. If this was approved for anything it'd probably be CUI information at most (ignoring the many issues with their actual implementation).
As someone noted above the Commercial Solutions for Classified program has been in existence for a long while (probably over a decade). This package is newer but not wildly newer. Installs of the various 'packages' do exist.
The white house scif is pretty laissez faire as far as SCIFs go and I imagine there's a whole pile of stuff from Maryland monitoring everything in another room nearby. I can see it being used for ipads for principals as it might be easier to police than stacks of paper.