There are all kinds of considerations; however, the office mandate is to assess the potential for military conflict and security risk for those flights, and the recommendations they come up with are based purely on the information and intelligence gathered by Canada and our partners. While there are other considerations to avoid or for travelling over Russian airspace, the risk that the office comes up with is based purely on the risk of military conflict.
On March 21st, 2022. See this statement in context.