Can you please explain what you are basing this critique on?
reviews i've read, and my own bygone notes and experience with The Dictator's Handbook and The Logic of Political Survival. my critique is leveraged at both of them, because my memories of them are intertwined, and the former is based heavily on the latter.
The Logic of Political Survival is based in game theory (rational choice model), which falls apart when you consider that people don't/can't always process all information and don't/can't always minmax their choices. the supporting data for selectorate theory is biased; correcting for this bias heavily diminishes the findings.
on the theory's usefulness as a tool for analysis: Gallagher and Hanson wrote two papers ([1],[2]) about it. tl;dr: it's not a great predictor; it doesn't explain illiberal systems or peripheral politics; and it doesn't account for plurality.
What I find interesting in Selectorate Theory is that it links power and economics in a quantifiable way.
i can appreciate that; i also have a STEM background. if you're modelling a core liberal democracy, i think it does well enough. however, i think it's oversimplified, which is a common problem i find with quantified theories of social phenomena. it also probably falls apart if you want to predict the effects of a system reform/upheaval, or beyond.
that's why i refer to the philosophers and social scientists. their theories aren't calculus, but they provide the framework for understanding the origins and also what rough shape the outcome can take, without being too prescriptive.
… and how exactly will Trudeau's resignation help?