Certainly different, but not very sensible. Helicopters are expensive to buy, expensive to fly, burn a lot of fossil fuel and make considerable noise.
Road transport might be more sensible even if not allowed normally.
The problem is not that road transport is not allowed, but that there is no road to actually get to the village. There are a small number of vehicles (not private transport) in the village, including a couple of "taxis". As you say, helicopters are very expensive to operate so I don't think this service was put on just as a "gimmick".
Before you ask................. perhaps the vehicles already in the village were delivered by helicopter
