He's been the central character in warcraft since the game even had a story. His death was supposed to be meaningful and amount to something, but nothing would have changed if he was still alive. Not only is this terrible story progression, its showing that wow, like so many other franchises, has nothing more to tell but side stories until the dev team awakens from their 10-year slumber.
Heres to waiting for warcraft 4
edit:
im glad this is turning into a discussion.
people say arthas is just a side character in the warcraft series.
Arthas and his scourge:
- led Illidan to the skull of gul'dan, causing the events which lead to BC.
- RELOCATED both the entire alliance and the horde forces
- crippled the burning legion enough to prevent another invasion RoC
- had 2 warcraft games centered around him