Ok, since you gave the ok... LOL...
I dont have kids, but i was one at one time & i know how kids can be... dogs (excluding those with medical conditions or mental afflictions... which should be seen by a vet anyway)
any abnormal aggressive behavior should be looked at by a vet, you's be surprised how a abnormal thyroid can alter a dog's behavior. what if what you see as unprovolked behavior was really a medical condition that you didnt address? if i were anyone facing a bahavior problem i would want 'all the bases covered' before i proceeded with the thought of 'oh, this dog is dangerous'
forgive me for saying but your assessment of the dog's reactions shows that you dont know dogs as well as you think you do, that dog was pushed, a LOT & warned... a LOT before she finally bit & when she did, CM only had one puncture in his hand & a few lacerations on his hand. to me this is a dog with incredible temperment & bite inhibition, only using as much force as was nessessary. dogs dont WANT to hurt us, we make them when we do stupid things like this.
say the dog was you at a resturant; the waiter sets your plate in front of you, a yummy plate of whatever your fave meal is, then some stranger jabbs you in the neck with his fingers & tries to take your plate away... wouldnt you have something to say about it? woudnt you ask him to stop? what if he didnt listen? i bet you'd try to push him away, if that didnt work you'd push harder til he backed off... thats what poor Holly did... she pushed, but since she uses her teeth, not words or hands she is seen as this vicious rabid animal & iots sad
there are ways to get around this, feed her in a crate behind a closed door NO ONE is allowed in thre until she is done. afraid fo her guarding treats or dropped food? teach her a solid leave it. sit on the floor & hold a treat in your closed fist, have another behind your back. wait til she stops messing with your fisted hand (it may take a while for them to figure it out) & looks at you, praise her (i use 'good leave it!' in a happy voice) & give her the treat behind my back.
once they master this i move to treat on the floor, i just make sure that the value of the reward is better then the food on the floor while they are learning this.