I think there are some ways that Michael helps Scott:
1. Swing voters/people planning on staying home show up to vote for Scott as a sign of gratitude.
2. Gillum bungles the local response hurting him in the governors race and dragging down Nelson with him.
3. Gillum does a good job but the media successfully sells an anti-Gillum narrative.
4. Damage in Tallahassee and Gadsden County causes turnout there to drop.
This might be true in an alternate universe, but currently, Gillum has been praised for his work, and DeSantis is being attacked for campaigning during the hurricane. Meanwhile, Scott is being attacked by veteran groups and even the Trump admin. on his handling of the situation.