Why people didn’t like Amber?

Amber is surely one of the best ghostfaces in this franchise and to prove that I'm going to give a quick reminder of all her exploits:

-She has a vast knowledge of the anatomy of the human body. This is proven when she intentionally targets all non-vital parts of Tara's body to keep her alive in order to lure Sam.

-She knows how to fight extremely well. This is shown to us during the fight against Dewey when she still manages to beat an experienced and strong sheriff like Dewey and when she manages to control Sidney and Gale at the same time during their fights during act 3 (even if she lost afterwards)

-I guess she has great computer skills to be able to hack Tara's security system and also hack Liv's phone to trap Chad.

-She is extremely fast and has a lot of nimbleness, which is shown when she appeared at the right moment to stab Judy or when she waited for the right opportunity to disembowel Dewey before he even had time to to pull.

-She is very intelligent, she killed Judy on purpose so that the police in charge of Tara's protection would leave in order to give them free rein to attack her at the hospital. Especially when she cleverly traps Chad outside.

-She is extremely discreet. Amber manages to disappear and reappear out of nowhere when Dewey attacks her in the hospital, she easily sneaks into the bushes to attack Chad and she also runs silently towards him.

-She handles guns very well and she also has very good aim like when she hits Gale in the stomach with the first shot.

-She is extremely tenacious and resistant like when she takes Dewey's bullets right in the stomach and shows no sign of pain after that knowing that even with a bulletproof vest it hurts a lot. Then she survives and gets up after 3 bullets in the stomach and having been burned all over her body.

-She has one of the most stylish reveals as well as one of the best intro scenes.

-She has a very good number of murders and acquired things like the murder of Dewey, Clay, Judy, Liv and perhaps Stu's nephew, as well as the attack on Tara and Chad.

To conclude Amber is a very brutal, sadistic and merciless killer, she is also very physically strong, fast, vivacious, agile and intelligent. For me she is one of the best ghostfaces with Wayne, Mickey and Roman and maybe Jill in front of her.