Why shouldn’t all public transactions be public? IRS and personal taxes may be legitimate since it’s, well, personal, but we are all “shareholders” with equal stake in all other payments. This is the perfect use case for public ledger. We should all have access to all of this data. All outflows should note which bill authorized that expenditure, every bureaucrat that’s involved with spending it. If I’m getting $600 in income tracked as a free citizen, I want the even more accountability for anyone spending that amount on behalf of the government.
There’s almost certainly no clearance requirement for what they’ve looked at already. Maybe HIPAA. I’m not sure why one executive branch org has any more or less right to access this data than any other.