I disagree as well. I actually gave a whole talk on the topic. Burnout has nothing to do with whether an undertaking is successful or not. If you look at Christina Maslach's work on the measurement and factors that lead to burnout you will see that the success/failure of the effort is not a significant antecedent to burnout.

For anyone interested in a (potentially) helpful framework for how to evaluate opportunities and avoid burnout, you can watch my talk here - https://vimeo.com/202061452