Sure, it is shared at: https://oalley.net/map/b4e

If it helps, the 3 points going east are probably due to 2 canyons that do go east of town, one of which splits into 2 roads after a mile or so. And many of the others are similar in that, yes, there is a road that would extend your reach in those directions... but not quite where the map is drawing it. There are two areas that are complete anomalies: the path going NE through Springville and the one going SSW towards Levan have zero correlation with any reasonable roads - those both are flying straight over mountain ranges.

Same here, the points look mostly correct for going around mountains, but it doesn't follow the road to get there https://oalley.net/map/b59

Another interesting case is going from Key West out. Naples, FL is shown inside the 3 hour range, 110 miles apart as the crow flies. I'm not sure whether it's finding a ferry route, or whether ferries reasonably go that speed, but I thought the results were interesting.

https://oalley.net/map/b8y

Here's one:

4 hours by car from San Francisco. It says you can't reach South Lake Tahoe, but Google Maps (and my experience) show that it's usually about 3 1/2 hours.

https://oalley.net/map/bd7

https://oalley.net/map/b6j is another pretty poor one. edinburgh to Anstruther is probably closer to 2 hours. North Berwick is more than achieveable in an hour. Callander (in the north west of the map) is closer to 90m.