At first I thought the rack size was larger, but the picture only has seven tiles per rack. So, yeah, I have no idea how the words are any more complex (assuming that "complex" means "long" and not just "more Zs" or "more blanks"). Maybe he meant "more words that are complex" rather than "words that are more complex"; I can imagine that there's room for more bingos, so an open playing strategy is likely to generate very high scores-- I bet ACBot would be even better at Super Scrabble than he is at Scrabble.
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