All I could glean from the article was that they halved their own previous energy costs for cooling the superconducting magnets.

Which is pretty cool if you need some really powerful superconducting magnets and you have to keep them going for long periods of time.

They'd probably be great for levitating frogs.

I don't know if these magnets would be useful for MRIs. Like the fMRIs that you need to keep going for a while or something. I hope so; more people having sex in fMRI machines can only be a good thing. Just because the mental image is so amusing.

I didn't see any hint that this was particularly significant for commercial fusion. Instead of generating X amount of power and consuming Y for magnets plus Z for other stuff, where Y+Z >> X, now you're using Y/2 for magnets, and Y/2+Z >> X. Yay?