You don't have to apologize at all. I was being quite harsh and that usually brings more negative emotions in return. I was:
a) too quick to judge. At the same time I think that the first impressions, good or bad, are always important. It's okay to be wrong.
b) biased against the young troll, because he suddenly became the center of this huge cinematic. And that happened just because he got popular within the community over a meme. I mean, he is that meme.
I tend to dislike things that are massively popular. It's not something what I do on purpose. And I am not doing it to feel unique. And I don't think that it is a pattern because I do like some of the extremely popular characters like Sylvanas. So the 'cheap part' isn't the plot device but the fact that the troll became a popular meme and Blizz decided to take advantage of that, making him a relevant character.
At the same time a lot of interesting and young characters from the game don't get the recognition that they deserve or development that they could get. Sometimes they have been completely forgoten already.
I do share your wish for more fresh Horde and Alliance faces.
In the end, if zappyboi get's a proper name and some good story later in game, I'm in. I just hate the way how he became relevant.