That 42% number is telling but not for the reason most people cite it. The gap between "impressive demo" and "production system that actually saves money" is enormous. Most of those killed pilots weren't bad ideas, they were bad execution. No feedback loops, no way to measure if the AI was actually doing the job correctly at scale, and no plan for what happens when it starts failing silently.

The 10% that stuck probably just had better engineering discipline around it, not better AI.