An aide to the Florida governor said that Harris' call "seemed political" and that she "was trying to reach out, and we didn’t answer."
Separate from the article, he's also refusing to extend voter registration deadlines because of the storm unlike South Carolina. Today is still unfortunately Florida's voter registration deadline, make sure to register: https://vote.gov/register
I'm not the one that kept demanding Harris, as VP, is powerless against what Biden was doing. She's still not in that position of power and is acting on behalf of the President?
I doubt the VP and President disagree all that much about "we should give hurricane victims aid". The president can informally ask the VP to do simple tasks like "hey keep in touch with this governor and see if they need anything" when they think you'll do what they'd do. The VP can't act directly on things themselves
You also want to keep the person who might have to take over for the president at any moment to be in the loop at all times. You wouldn't want them scrambling to get caught up in the off chance they had to take over for the president
Keep in mind he's also refusing to meet with Biden