I noticed in the Wired article that some people had to do a few different brain training programmes before one worked.
I hate to be a bumbling and biomedical-obsessed “let’s quantify treatments with a trial” kind of patient advocate, but if anything this undermines the brain-training case because you’ve stated it doesn’t always work.
See, it sounds like you're getting confused and using 'logic' and 'science' and 'common sense' to approach the issue.
Meanwhile, Alan Levinovitz's stated fields of expertise are 'faith' and 'pseudoscience', both of which seem very suited toward brain retraining.
If this were a movie, you'd revise the script: no way you can have the guy who is a religious studies professor whose only credentials are degrees in divinity - make it their life's work to study pseudoscience - and then promote repeatedly buying expensive pseudoscientific faith-based treatments.
It just seems like lazy screenwriting. Studio notes would not be kind.