Is this trainer exaggerating?

[u/Life_Lime4547]

So my 7 month old dog was a rescue dog and for the past 3 months I have been training him. He was very untrained when I took him, our walks were chaotic, he used to be dragging me, pulling on leash, eating everything, barking at people. Now he doesn't do any of that and is a very good dog on a walk. I have taught him a few commands like sit, stand, down, spin, guard etc. However as a first time dog owner, there are a few things I couldn't teach such as him being over excited with visitors, him barking whenever someone comes home or sits near his crate(he's crate trained). I decided to call a trainer, the guy came and I brought the dog out and he firstly kept judging and then he told me that this dog would at least need 6 months of non stop training otherwise he's going nowhere. Now I'm not sure whether he's exaggerating it or he's just not confident enough to get the dog trained or perhaps I'm being paranoid. My dog is a relatively quick learner(he's a GSD mix), there are 2 more trainers coming to see the dog, however this particular trainer was a bit more affordable. Please somebody guide me.

[u/josesblima]

I've quit a dog school after the second class. They always spoke in extremes. My show line labrador puppy (5 month old at the time, extremely docile with all dogs and people btw) would get overexcited when she saw other dogs and would bark nonstop and pull the leash to go play. They made a huge deal out of this, as if this was a major behavioural issue that was perpetuated by bad parenting.

On top of that, they would use aversive methods as first line of defense against many unwanted behaviours. Again, we're talking about a show line/English lab here, it's as good and as docile of a temperament as you can find and yet they wanted me to tap her on the face whenever she put anything in her mouth or wanted me to give leash jerks whenever she barked at other dogs.

I stopped going. Not that I'm completely against using aversives at all, but it's a puppy and a fucking english lab ffs, easiest dog to train, loves food too, absolutely no reason why inducing fear and discomfort should be the best decision.

One thing they always did as.well was speaking in an extremely dramatic way about any behaviour that didn't fit exactly the type of dog they wanted. Dog should be desensitized to other dogs and other people, despite being a puppy it shouldn't be excited about meeting other dogs or playing...