Yes, decisions based on feeling can indeed make people appear flaky. Being that around half of all decisions are feeling based, this should come as no surprise.
I came up with an example on the spot of something light, which might still offend someone. It's something anyone could do, so I'm surprised at the objection. Of course the average NF cares about people--I could come up with another example based on that: Instead of a band, it's an old friend come to visit. Then you have to prioritize among people, possibly make an F decision, and likely trust whatever choice you make to be the best one, ignoring any criticism.