Yes, they've mentioned that a few times, generally in reference to their diet program (which is one of those things I ignore, because it's a sales push). But again, I don't see issues in their more updated/recent videos, and their training videos are valuable. The comments they make are in line with what my avian vet advises, and the clicker/touch training is very standard. The only exception is, these are accessible videos with follow-ups to see the progress the bird makes. Are there any other varied and accessible videos like that available as an alternative?
As a side note - I totally disagree that all new owners know what to feed birds. I still see people feeding primarily seed diets to their parrots, and there's also the illusion that natural is better. There was a research paper that showed birds even on 25% pellet diet were nutrient deficient, because they consume their favourite veggies and fruit and leave the rest (and there are some nutrients that aren't commonly available in fresh). The fact they were in the business of parrots and didn't know that is bad, but I am ok that they acknowledged their mistake and took their birds to the vet. That isn't clueless, and it was also years ago. I haven't seen much in their current recommendations that gives me any alarm bells, and their training videos seem to be standard but helpful.