Liesje
Hopefully she will expound on the idea and give some more examples of aversive training and when it does or doesn't work.
I really hope she doesn't focus too much on aversives, to be honest. It's one things to give a few examples of how and why she has used an aversive, but it's another to begin a discussion that will easily get out of hand.
Part of the reason the "99% positive" discussion has come up is that people are far too inclined (as you have mentioned, and I agree 100%) to jump to harsh, physical, and tool-based methods and will do so quicker than picking up a bag of cookies to teach the same thing. People will use a cookie to teach their dog to sit, but instead of applying it to real-life contexts, then still continue to jerk at the dog and push on its rump, and then complain that "the dog only sits for a cookie".
When professionals, who are well-respected, begin to hold conversations, it's all too easy for the inexperienced to jump on the bandwagon and try things out for themselves. A certain television show is a great example. Watch a few episodes with "Tsssht" or "claw jabs" and you have people all over hissing at their dogs and jabbing them with no idea of the consequences of doing that (and in some cases, the lack of any behaviour change!) - just because a "professional' demonstrated it on a TV show. I am very careful to not give any form of aversion or punishment (no matter how benign) advice over the internet or on blogs, because of the chance of setting people up to fail. I would think that Trish would think the same.
Saying that you will use an aversive in a very specific situation after trying other, gentler things first, is different than listing out all of the possible areas where applying aversives are good/bad/neutral. Because.....it is 100% dependent on the dog, the family training the dog, and the circumstances of the behaviour. People, with no idea of their dog's needs (and a lot really don't know!), and no idea of how their dog responds to stimuli, and even yet no idea of how to read the outcome of a consequence you have provided (based on dog's body language, and behaviour after that consequence), will take these examples because it "sort of looks like what my dog is doing", and then fail miserably at it.
If you asked any five of my clients about what "consequences" I recommend for things, often all five answers will be slightly different. And that is why, I feel, you should not begin to give "case study examples" too often to make it look like "If A happens, then B should follow", because you often have C,D, and E to contend with in the process, and those variables are almost always different for each dog.
An example - biting/tugging at the leash. For five different clients I have made five different recommendations:
A. Clicker train "Leave It"
B. Coat the leash in a bitter-flavor coating, rewarding for leaving it alone
C. Use a head halter to redirect mouthing of the leash
D. Desensitize the dog to the leash, starting from just picking up the leash.
E. Using a muzzle while dog was on-leash (this is an extreme case)
F. Put it on cue and use it as a reward
All different protocols, in a case where all of the behaviours looked 'the same' on the outside - leash tugging - but in reality were all driven by different motivations, histories, and drives. Each of those options works well for that situation. Recommendation A worked well for Dog A, but recommendation C was would be unnecessary, whereas Recommendation A, B, and C did not work at all for dog E. Recommendation F worked amazingly for an agility dog I know, but would fail miserably at the hands of Dog C's owner. Dog A was a young pup, with little history, while dog D had a very bad association created with the leash and needed to start again from scratch.
For each behaviour, there are so many ways to work on it, dependent upon so many factors, that you can't begin to make recommendations or discuss pro's and con's on a blog or forum.
Another good example is knowing when to "fix" a problem and when to "manage" a problem. The same problem, depending on the household, will always be addressed differently.
So how can a professional even begin to list examples of aversive training and when it does/doesn't work?they can't. It's too black and white, and dogs and their families live in a world of grey. There are too many variables. It took a huge set of paragraphs to explain teaching Willie not to rush sheep, and that's just one example in a very, very specific circumstance.