The ombud's report explicitly says that they applied negative inference to come to the conclusion that there was bias. While we find the findings of fact correct and we agree with the recommendations, we do not agree with the negative inference that there was bias by PSPC employees in the selection of McKinsey.
What we do take from this as a strong lesson is that when you do not have proper documentation, you do not explain your procurement process and you do not explain clearly your rationale for the choice of a firm or a method, it can create a vacuum into which people can make negative inference.