Should the plugin support multisite?

The original intention for this plugin was to be used in order to create themes within WordPress. Those themes could then stay used on the specific site, or to be shipped elsewhere. As the plugin has progressed, more and more people are using it in a live production context rather than on their developer sandbox environment.

Something that we hadn't envisioned was this being used within a multisite context. On the .org forums we've had some reports of errors for this,

1. https://wordpress.org/support/topic/fatal-error-on-export-clone-create-child-theme/ (possibly a PHP related error)
2. https://wordpress.org/support/topic/child-theme-in-multisite-shows-error/ (possibly a core issue in WP_Theme class)

Multisite has different configurations, sub sites and sub domains, as well as domain mapping. I'd like to hear from the community if there are some good use cases for putting some additional work into making sure the plugin is fully multisite compatible.

Start by reviewing the two linked WordPress.org reports and the referenced WP_Theme class in WordPress core. Reproduce the reported multisite errors across the described configurations, then establish the supported multisite use cases and compatibility requirements before defining what completion means.