Zandalari male/female are the sameish size or so. The only reason OG trolls have the huge difference in height is because the males are hunched over and the female ones had their hunched model removed and replaced with an upright one, and upright trolls are too tall to be playable.

"Nearly" every new race is super huge though. It's nice to have a less insane one. It's come to the point where I think humans are one of the shortest races because of how many new races are so big.