No, the campaign's goals were to push higher plasma energy out of a JET pulse. This required upgrades to many subsystems and to dust off everything necessary f

No, the campaign's goals were to push higher plasma energy out of a JET pulse. This required upgrades to many subsystems and to dust off everything necessary for nuclear operations. They did this in support of ITER, but there are also likely other political motivations. There has been no nuclear MCF operation on Earth in decades and now the UK has invested in resuming theirs rather than mothballing it. You can't make claims about the motivations of the campaign (such as it being a signpost?) if you don't know what was even done. And again, you shouldn't talk about the roadmaps if you haven't looked at them. Look at PPPL FIRE and power plant studies.