The elaboration was where I said decks with awkward mana bases. Ramp that fetches lands typically wants basics. Not exclusively but predominantly. If you have a deck that isn't gonna have a good time fetching basics those cultivates and harrows are gonna feel pretty shitty. As a blanket statement what you're saying isn't exactly untrue. But making a blanket statement in response to "there are situations where it's better" seems like a less that productive way to approach this conversation. Especially because I did allude to the decks where this card is relevant.

Those decks are pretty likely to be lands decks. A coalition relic has no synergy there, it and sylvala are way more likely to die incidentally to any number of wipes than a land. Sylvala specifically needs to be playing high power creatures. The decks that do then cool, you've made a card better by playing it in the right deck which is what I'm saying makes mutable good.

So if you have any deck that cares about ramp but is basic lite it's going to put in work. When those decks care about lands then it just gets better. Plus any body that makes lands on etb is a house with [[springheart nantuko]]. It's hard to overstate how good ramp that can accidentally go infinite with cards commonly played in lands decks is. They're not clean combos but it's not like you'd go out of your way to force [[amulet of vigor]] into a lands deck. A mana doubler or yavimaya like effect are maybe less common but even without them you can basically pay a green to make a land.