Juliette got angry with everyone later and did blame them for the situation she was in. She might have been mad at herself too for helping Nick become a grimm even though she really didn't want that for him (and their life together). She had stepped up because their friends were in danger but everything went haywire from there. It went from frying pan to fire. She might have felt there was a certain irony there too. She really didn't want him to regain his grimm powers after he lost it but had been the one to help him regain it. If Juliette had hightailed it out of Portland once she realized her relationship and future with Nick was never going to be what she had imagined for them, maybe the scoobies would have found a way to convince Adalind to come back and undue her spell. A good way to convince Adalind and lure her back would have been the promise to reunite her with her daughter.
Adalind did use hex powers once she got them back. She had been worried about her powers returning because she was no longer proud of who she had been and what she had done in the quest to make herself the kind of hexenbiest her mother (and Sean) would have been proud of. She wanted to remain the person she had become after having Kelly and she did remain that way so she had been worried for nothing. Maybe she got tired of the games and all the machinations that had also been at a cost to her. Once the cat was out of the bag about her powers we did see her use her them, even for Nick. However a hexenbiest is what she is, just like Eve/Juiette is also a hexenbiest now. Once Juliette smoked the hat, she became part of the wesen world. Her actions as hexenette was more of a reaction to her disintegrating relationship with Nick and her desire to punish him at the time than the hex controlling her.
Adalind did use hex powers once she got them back. She had been worried about her powers returning because she was no longer proud of who she had been and what she had done in the quest to make herself the kind of hexenbiest her mother (and Sean) would have been proud of. She wanted to remain the person she had become after having Kelly and she did remain that way so she had been worried for nothing. Maybe she got tired of the games and all the machinations that had also been at a cost to her. Once the cat was out of the bag about her powers we did see her use her them, even for Nick. However a hexenbiest is what she is, just like Eve/Juiette is also a hexenbiest now. Once Juliette smoked the hat, she became part of the wesen world. Her actions as hexenette was more of a reaction to her disintegrating relationship with Nick and her desire to punish him at the time than the hex controlling her.