Yup not an ideal situation to spur on planning and preparation. They can’t scale up quickly enough in the relevant ways in the manner you’re suggesting (before Monday) can they? I see this more as a situation where they admit a large influx will break the site, plan for a general “all hands on deck” day to assess the issues (if any) as they arise, interpret, prioritize work. If hosts have issues with server migrations, deployments, etc. etc. it’s already the weekend and none of it is an option for Monday.
it has a lot of different names, not sure if that will help or hinder