I think so except im not sure my way isnt mainstream.
I've made mistakes. Lots of them. But i've also succeeded where others have failed. For example, my male moloccan cockatoo, a two pound bird with thousands of pounds of bite pressure. When he hit puberty he began biting, and nothing seemed to work, but then i remembered the story of how Helen Keller's governess had a breakthrough: by excluding her from the group while doing an activity that seemed attractive. Eventually the subject tries following the rules to rejoin the group, which you can then positively reinforce. I tried this method on my kirby over a long difficult period but eventually it worked and i never had him bite again. Later, i found out that male moloccan cockatoos raised in captivity have a species-wide problem with aggression at puberty and attack the females as well as people and that between loss of habitat and this difficulty in captivity, they are endangered. As far as i know im the only one who has broken through on this.
Again though, i've had plenty of failures. While i had a pretty good relationship with my many-owner live-caught amazon who was my shoulder bird for years, eventually i made him hate me by leaving him home all alone while i went to work for months. Then i pushed him too hard on the resultant biting and he was a grumpy mean old bird after that.
These breeder-raised first-owner birds seem so easy and friendly that owners who have never had trouble birds can fail to realize when they're making major mistakes like backing away when bitten, which btw is a classic mistake documented in bird training books. It seems this particular bird person does not know she needs more education and has not read any training books to know shes making a mistake.
Edit: as to the unconventional, i think Bowie needs to be taken to bed at night by the owner. I have had many birds and only a small number will come to bed. My sun conures come to bed with me more nights than not, and Bowie would love that, i am certain of it.