I'm not sure what would be worse - having a single encounter inspiring a transformative effect, or a full on meeting of cultures with a process of "civilisation" (scare quotes mine). However, I would be saddened but not surprised to see either in basically any TV show, even a massive budget/high-profile one like this, even if it doesn't fit with previous characterisation. I mean, that's how I felt on reading that it was an Australian dialect coach who made the decision to give the Harfoots Irish-based accents - I'm Australian, some of us would totally do that without thinking. While I don't know whether the accents came before or after the problematic story tropes, obviously nobody put the unfortunate implications together in time to prevent it being filmed that way. I know society can do better, so seeing individual productions continuing to do worse is disappointing, but it's not unexpected. I can continue to hope for better, though.