Re: Before I believe this I want to see it replicated by another, unrelated, group.
If the countermeasures to this attack are cheap and easy to implement - just have your computer run some other encryption code to create noise - why not implement them, even if you are doubtful that the attack is viable? The only 'cost' is slightly greater power consumption. I for one can't be arsed, because i don't work with state-level secrets - I'm just not worth the effort! Those people who do have state secrets will have their computers administered by folk who are in a position to replicate this - if replicated it can be.
Contrast this to the people who believed the trash about MMR, and as a result the lives of some people have been damaged.