I finally beat Level 33 with no house losses, and I have a feature request for being able to wait a turn without doing anything, on purpose - the last infected tile was an Ocean, and thus indestructible.
Thanks for the feedback! Totally understand why you'd ask for this feature and I'm aware of the issue you're talking about. The reason I didn't add it is because it can break other puzzles and become a mechanic in itself instead of a small tool to help prevent these scenarios.