on heels of LLNL's second successful fusion ignition
These tests are weapons research. The point of ignition experiments of that kind is to simulate how nuclear bombs work, without having to blow stuff up.
LLNL is a research and development institution for science and technology applied to national security.  Its principal responsibility is ensuring the safety, security and reliability of the nation's nuclear weapons through the application of advanced science, engineering, and technology.
How much energy they release per laser-power invested, is completely irrelevant. This ignition chamber isn't and wasn't ever a reactor design. How would that even work? Tiny elves shoveling pellets into the reactor chamber?