Wrong, wrong, wrong.
MANDATORY RIFs aren't in place after 30 days in an emergency shutdown, but Agencies can and will still implement the procedures if they want to.
RIFs are mandated after 30 days of a shutdown, in essence to save taxpayer money. OMB's statement simply says that this doesn't apply to an emergency shutdown (which they imply this shutdown is, but I think lawfags would agree this could be challenged…).