The failure here is much more fundamental than that. This isn't a "no way we could have found this before we went to prod" issue, this is a "five minutes in the lab would have picked it up" issue. We're not talking about some kind of "Doesn't print on Tuesdays" kind of problem that's hard to reproduce or depends on conditions that are hard to replicate in internal testing, which is normally how this sort of thing escapes containment. In this case the entire repro is "Step 1: Push update to any Windows machine. Step 2: THERE IS NO STEP 2"

There's absolutely no reason this should ever have affected even one single computer outside of Crowdstrike's test environment, with or without a staged rollout.