Can there be too much Standard of Review in Canadian Administrative Law?

When I was on the job talk circuit a couple of years ago, an eminent professor confessed that s/he had only half paid attention to my presentation, noting that s/he had stopped paying attention to Canadian administrative law about 20 years ago and was satisfied that s/he had missed nothing: "Obviously you are having the same argument that scholars were having two decades ago". And from time to time one hears sighs, even from administrative-law aficionados, accompanied by moans of "Oh no, not the standard of review again".