OK, I see it now, the highlighting actually obscured the text for me, I didn't see either the green or red highlighted sections.
I'm saying that the tradeoff in practice is 1) not very relevant if present, and 2) not clearly present because you're comparing two very different classes of vehicles. Consumers compare between cargo/passenger capacity and absolute fuel economy among the same class of vehicles, not between different classes. The L9 is a full-size luxury SUV while the Highlander is a mid-size economy SUV. I mentioned weight and tire sizes because those are typically the things that make luxury vehicles less fuel efficient than their economy counterparts even when they're based on the same platform and drive train.
As my said before, that trade off is one for real automotive engineers to make for consumers.
BYD could easily create a series-only hybrid, but they are doing the more prevalent series-parallel design.
Just different options, a consumer can choose based on price, performance, gas efficiency, etc.
Also, I think you may not be aware of the new Grand Highlander which is 3-row/7 passenger extended wheelbase (aka Full-Size) compared to the regular Highlander. There will be a Lexus version as well, but I did not use price, so it would be technically similar.
As an aside, I don’t really think the Highlander can be considered “economy” based on the price, but that’s not really important for this discussion, lol.