I think "Outage" as stated is a bit over-the-top. We run significant operations in most of these DCs, and we have seen zero impact. YMMV of course, but I think it's a big disingenuous to say this is a full outage.
Who knows how many people it's affecting?
Of those I had two in Newark which actually had their leases expire before we were aware of what was going on and then found three more (two Atlanta, one Newark) once we knew what to look for which were failing to renew. All five of those machines already had network helper enabled as Linode suggests but were unable to get a lease even with manual operation of the DHCP client until they were rebooted.