I think in a perfect world, consistency would be a priority. But with games, if it gets in the way of fun (like involving tedious travel), then it has to go in that instance.
The rowboat thing was likely an oversight. I guess, for me, I wonder how people who are very concerned about consistency can enjoy make believe worlds in games, books, movies, etc. There's always going to be something that's inconsistent or silly and requires a gigantic suspension of belief (or disbelief - never sure which one that's supposed to be).