Thanks for the run back, and for putting the hint fix on the list. One concrete shape for the two-routing room: pair the vent with the crate. Cat slips through the vent (fast, free) or the robot shoves the crate into the laser and opens the floor route (slow, costs a charge). Same exit, two prices. That's the spot where "who" turns from a lookup into a wager.
When the hint change ships, the measured version is the one that tells you whether players find the second routing without the nudge (multi-run counts + exact repro). Not a pitch, just on the table. Good luck in judging.