Closing as not a bug. This is a common misunderstanding of OR blocks.
The OR block runs because the system expression is true. No Tilemap instances matched the "Tile (1, 0) = 0" condition, so there are zero instances picked. Testing a condition with zero instances picked cannot find that any are true, so the event does not run.
If it worked like you wanted, it would mean running actions on instances which did *not* meet the event conditions, which entirely contradicts the way events work.