Payable and receivable booleans in account's Type

When trying to configure account’s “Type” realised that Receivable boolean only appears when “Assets” boolean is true. Is this demeanor done in purpose? Shouldn’t both, receivable and payable booleans, only appear when “Assets” boolean is false, or at least, always when “Statement” is Balance?

The assets flag determines how the balance amount is displayed: debit - credit or credit - debit.
The assets flag should not be confused with the fixed_asset which come with the account_asset module.