Do you even want floating, radioactive tritium plasma that would also destroy the ozone layer, if it leaks out of its electromagnetic containment and melts and penetrates everything on its way up?
"Why use 1 part when 6 will be more interesting." Those engineers? I'm not saying they can't, but I wouldn't be putting money on it.
Right now we can't do fission economically despite 70 years of trying, and it's basically using hot sticks to boil water. Suspending plasma in a magnetic field to somehow boil water is a whole other level of complexity.