Were you let down by King Sombra? Yes, he could have been so much more! 11 (73%) No, he was perfectly fine the way he was. 4 (26%)
Whelp looks like the majority is with me on this one, Sombra had the potential, they just squandered it by turning him into a simple plot device. Oh well, maybe he can find a way to come back, after all we saw that he can regrow his horn, maybe he can regrow FROM his horn.