Could it not be a real opportunity to monetize google maps if google were to integrate suggested flights to get from point a, to point b, should actual driving/walking directions not be available?
That's a usability bug: google maps should allow you to choose a journey without toll roads. This one not only has tolls, but in three currencies (U.S. dollar, Japanese Yen, and Hawaiian Coconuts.)
There's another bug in the directions; if you specify walking directions,
Google Maps still has you kayaking across the Pacific Ocean, when you
obviously should be using "walk on water shoes".
At the very least, they should give directions to a place that sells kayaks before leading you into the ocean.
When I try asking for directions to other countries, I get a “kayak across the Pacific Ocean” step for China, but everything else just gets a “we could not calculate directions...” response.