[tempestn]

Slightly more than 1.5x you mean. And yeah, since the design limit load is already going to have a safety margin over the max anticipated load, as long as the test performs some amount beyond that design level, it's good.

Edit: This is assuming the 'design level' is the level it was designed to withstand, which is how I would normally understand the term. Having watched the full video now though, it sounds like it actually exceeded the expected max force that could be expected in the real world by 1.54 times, and that the design anticipated about 1.5x. So indeed, it hit dead-on the design expectation, rather than vastly exceeding it—but that's fine, because the design included a 50% margin of error (and one would hope, a conservative worst-case estimate).

[ChuckMcM]

This is the way I see it, you get to the design limit, that is 1x the design limit, then you up that by 100% so now you are at 2x the design limit, and then you go 54% more so you are at 2.54x the design limit.

[skosch]

It's 154% of the design load, not 154% more than the design load. So 1.54×.