Based on this analysis, the company claims to be able to tell when there is a fault in a panel at the level of the strings of photovoltaic modules the panel is composed of.
And while it can be, on one level, hard to fault someone who does have the money from spending it on a party if they so choose, these high profile events have an impact on all of us.
Basically, this would be like a developer who is building homes along a fault line and only tests the durability of the construction up to a level 4.0 (light) earthquake when there is a decent probability that an 8.0 (major) may hit.