I haven't watched the vids yet, so this response is strictly on the girl's article referring to the method.
I would agree to an extent.
If Zeke were with a submissive, frail person, his fears would be more severe, he would probably have more
fears, and his fear aggression would likely be more than it ever was. (Currently he hasn't had any remnants of fear aggression in probably about a year or more.)
On the other hand, if Z were with an aggressive person(not just dominant...aggressive), he would still be submissive, but his fear aggression would escalate greatly. He would probably actually be more submissive,
but with more severe and more frequent fear aggressive outbursts.
When I worked at Petsmart, we had a very aggressive (pardon my French) ASS
who had a Shepherd mix. The Shepherd mix was very sweet, but extremely
unsure of himself, and therefore a little unpredictable. The owner wanted him to be aggressive(what a dumb ass) and tried to encourage him to bite, lunge, bark, generally be mean. When brought to the salon I was asked to help(lucky me). A lot of his aggression was fear based---because of his owner's aggressive nature, the poor dog really didn't know who to trust and just lunged at everyone. So naturally it was very hard to get him groomed. We did get him washed, safely, and he calmed down some. But for the brushing, nail clipping, ear cleaning, etc, he had to be muzzled. He just didn't trust us to be so close to him, and touching him so much. (We ended up skipping the nail clipping and ear cleaning, and much of the brushing...he was so stressed.) By the time we were done, even though he was stressed, he was much less aggressive and even almost relaxed around us.
The minute his owner walked in the door he was barking and growling and scared.
So...definitely say our own behavior impacts our dogs.
(And by the way....we refused to groom him again, for both the dog's safety and ours. But boy did I want to take him home. :dogsad