With the new magnet engineering (basically the electromagnets are using some kind of metamaterial for the wiring that's needed to wrap around the toroid that's way better than copper, thus confinement is much easier with the stronger B field in way smaller space [the first research paper that talks about this being theoretically possible was back in 1987, but the engineering capabilities were not there to do such]), you are not limited by volume compared to strength of the B field, so you could have portable decentralized fusion reactors (they talk about this in the video).