One of my first experiences with Apple Maps was mapping a route to an address in the next town over that was not yet in Apple Maps’ database – 4465 1st St. in Livermore, CA. I reported the problem and about within a week or two, the location was added and live.
Seems like fixing the missing POIs is a high priority, as it should be.
As you can see from this thread, a lot of people are seeing this too. Also interesting how many people are submitting recommended fixes. While I don’t want to underestimate the scale of the problem, hundreds of millions of crowdsourced fixes can improve things rapidly.
Probably not soon enough for the soggy folk of Gronant, though.