I would imagine that its called 'Pineapple Whip' as Dole is a brand name. I'm guessing its never changed in the US parks as its become the de facto name, much like vacuums are colloquially referred to as 'Hoovers' in the UK.
As for the product itself, as it says in the Tweeted picture, it looks like the US version is a pineapple flavoured ice cream, whereas the Parisian version is vanilla sat atop pineapple syrup.