The trained model is a work derived from masses of copywrite material. Distribution of that model is infringement, same as distributing copies of movies. Public access to that model is infringement, just as a public screening of a movie is.
People keep thinking it's "the picture the AI drew" that's the issue. They're wrong. It's the "AI" itself.
69 MJ is 19.17 kWh. About 86p of electricity at today's wholesale price in the UK (£45/MWh: today is fairly average).
The research they are doing is great, but there's so much engineering to be done to turn fusion into something practical; something capable of running streams of pulses, not just single ones.
This was the last experiment for this reactor running it outside of design limits.