Gitlab does the same thing by virtue of being hosted on GCP (which also follows US export restrictions). Maybe Bitbucket doesn't? Don't know if Australia is part of the countries that embargoed Crimea (US and EU members definitely are)
Wut? https://about.gitlab.com/2018/07/19/gcp-move-update/ … from a year agp "NOTE to users in Crimea, Cuba, Iran, North Korea, Sudan, and Syria: http://GitLab.com may not be accessible after the migration to Google."