Awfully small print and no notification on the website with pulling the download links not a very good first impression of the company I have to say. Anyways looks like 5.3.8 was the latest version in ports. Thanks for the help.Not to keep adding posts about Ubiquiti software... at the bottom of UniFi 5.4.9 Stable has been released announcement:
Earlier versions in the 5.x.x train are not available in the ports tree so
portdowngradeis not an option. Otherwise I've read you can edit the Makefile and distinfo in the port for an older version. Unless you need the latest version just install an earlier revision with packages.