Some people (the majority, it seemed at the time) were super angry about the anime ending. Like there were some very distraught/upset people! Particularly over Shion's death/resurrection (because death is srs bsns in No.6-verse and shit, which is an argument I don't...really get...given that if you can stretch your credulity to encompass mind controlling, power-over-life-and-death bee gods, you got no right to complain about a character being brought back from death by said mind controlling, power-over-life-and-death bee god haha) and also the tornadoes. The tornadoes really didn't go over well, as I recall.