I am perfectly content with them killing off Neji. It is war, people are expected to die.
That being said, Neji started off on the same level as Sasuke, Naruto, and Gaara strength wise, and always acted as a power house in previous issues of the series.
I'm ticked about how he died. He should have went down after a hard individual battle vs Obito or Madara (or died earlier versus one of the revived shinobi.) Neji taking a shot to the back while covering Hinata and Naruto, without using Kaiten is bogus. Kishimoto turned him into death fodder. Not fun.