People are mistaking the FEMA directive. It is not per person, it's per household. Which means it is actually less, and a lot less if you lived with family.
It is quite literally worthless. It won't buy shit, it won't provide for shit. It is, quite literally, less than what the USSR paid to the people they kicked out of Pripyat over Chernobyl. Which is a impressive figure to reach: less competent than the USSR bureaucracy.
Though to be fair, I don't think this is meant to be a one time thing, like how Norfolk Southern tried to get locals in East Palestine to sign their rights to sue and demand help away with a one time 200$ voucher. But the US Government really needs some good PR and this shit is really not fucking helping, especially as they are printing money to help banks and sending billions to Ukraine.