no, you are trying to oversimplify the issue, the problem is not just "look"
It is look but also theme, fantasie, lore and aesthetic, goes further to gameplay reasons like imbalance, exodus and others things
High elf is the tolkien and classic fantasie elf, the same cliche, the mage elf, the ranger elf, and this is already occupied by blood elves, in look, theme ad fantasie
Voidelves simple overcome the theme, fantasie, aesthetic and lore problems in one hit, giving then another theme trough the dark/drow elves, given then another fantasie trough the void powers, and different aesthetic from the blood elves and the lore problem since they gave a reason inlore for the change
High elf more bulky will not change nothing, they still are the same elf, with the same everything, but more bulky, with no reason to be. Sorry, try harder