I don't think Buffy or the scoobies reaction in this season was over exaggerated or unjust...it was just as I would expect it to be. That being said I do think that the Scoobies were to hard on Spike in season 7. Spike had a soul then and Buffy had completely forgiven him for what had happened in the past and they were still mean to him every chance they got. Spike was the one who stood by her side, even when the scoobies bailed on her and kicked her out of her own home.
When were the Scoobies hard on Spike in S7? Other than the first six episodes in which Xander and Dawn were more upset about the attempted rape thing and they were justified. I don't recall them being mean to him.
VisionGirl
Does Giles & Woods trying to kill him qualify? ;)