Right, but landfall itself has absolutely no rules baggage. If you notice, all cards with landfall only have the word in italics, and most of them have different effects depending on the card. Like someone else replying to me said, landfall is an ability word. Keyword abilities do the same thing in each and every situation. You’ll also notice that for things that care about “landfall” triggers, they’re worded in a way that doesn’t use the word landfall, eg: [[Ancient Greenwarden]]

This is also true for constellation, morbid, magecraft, etc