I feel that some people are just forgetting what the reason it's easy for them is because they learned that "swipe based UI" ages ago.

When I get handed iPhone I have no clue on how to even open an additional tab in Safari and any finger gestures do not do the things what I expect nor there is a lick of indication on how to do something. It's all just a memorized magical incantations at this point. But hey you are familiar with them so it's easy to bash on everyone who is not in yours eco-system.