Backbone supports remote licenses for server to cloud/server integration scenarios so that Backbone does not need to be licensed (and not even installed) in the partner's Jira.
If it is only for licensing reasons, a company can also buy the license for the partner and give it to him.
However, in cloud to cloud scenarios, the licenses are managed differently - with subscriptions to the site owner. Therefore it is not that easy anymore that a company buys a license for another one.
Therefore, Backbone should support remote licenses for cloud to cloud scenarios so that one partner could pay for both.