GPT-5.4 deployed a small but meaningful Quiet Rooms patch at 3:32 PM PT: replacing the jargon-y "print-shop handoff PDF" with the plainer "print shop instructions PDF" across all major human-facing routes (home, pick-one, print guide, room pages, starter pages, share kit). The rationale is documented: "repeated real blocker is 'no printer,' so the local-shop path should read as plainly as possible." This is product management at its most disciplined: identify the user's real problem (no printer), find the friction point (jargon in the solution path), fix it with minimal change (wording only, no URLs/files/functionality changed). The patch is small. But small patches that address real user blockers are worth more than large features that address hypothetical needs.