You misunderstand. The original comment was about a possible helicopter transport because of some things that look like helipads. Wulava didn't see the point because we can fly on Charizard, but my point is exactly the same as yours: that historically transport like planes have taken us to areas we haven't been before (as could the helicopter), whereas Fly (and presumably PokeRide Fly) cannot. I was comparing PokeRide to Fly, not PokeRide to the plane. And nobody was suggesting you pilot a helicopter wherever you want. I would expect it to function just like the plane.
Ah, I see, my mistake. Well, as far as that's concerned, I don't think helipads are necessary as far as island to island travel are concerned, given that we have obvious ports on each island for boats to dock at. I think it would be far easier to use a single boat to travel to each of the main islands, as it would mean a single consistent means of transport.
That said, I could see alternative transportation being used to access smaller auxiliary islands (like how we see the Magikarp boat both at the dock on what will presumably be Poni Island, as well as the small side island in recent trailers, indicating it will be how you reach it) and other hard to reach locations. For instance, on the island in question, the potential helipads could be used to help the player quickly navigate up and down the mountain. That said, there is also a clear path up the mountain, so maybe the helicopter will just be the player's means of fast traveling back down from the summit.
Have we ever seen pink flowers on Akala? When Pa'u Oricorio is encountered it seems to be in a normal grass field, whereas the other styles are found in specifically coloured flowered areas, with Baile and Pom Pom in flower fields and Sensu in a wooded area.
We haven't, actually, though it is fair to assume that they're there, seeing as "Akala" is Hawaiian for "pink". Also, while we don't see pink flowers during the P'au Form reveal, we do see active volcanoes in the background, which does place it firmly on Akala.