It’s a bit difficult to parse the analogy since you’re comparing something that has never been done (and is a notoriously difficult technology to crack) to something that had been done by many others, many times. But, even so, and despite the lack of specific information about the test/achievement, I have a feeling you’re over selling this by quite a bit. If you want to compare to spacex, I’d say it’s more like the first time they demonstrated that they could control a re-entering booster stage with grid fins—a notable step to booster reuse.