it's designed to be similar to the hunt achievement mounts in that it is super casual content that you earn over the span of months or years. the ones complaining about it going too slow are the ones who probably grinded to level 8 or higher via gathering nonstop and ignored everything else, not realizing that those other aspects streamline progression and as you unlock higher levelled features, it progressively becomes easier to earn exp and currency. Also, this is not a one and done addition. it has already been made clear that they intend to continue adding more to the island and the features it offers will expand. We might even get actual housing, or at the very least furnishing decoration capabilities down the line.