Oh no worries at all @Arkshine - it’s always good to experiment. Having the [details] note in your post is good to make sure people know the risks they’re taking 
If sharing settings like this between plugins and/or theme components becomes a common requirement, then we can certainly work out some more robust options. Perhaps we can use this topic to lay out example use-cases.
My gut feel is that, if a theme is trying to use settings from another theme then… perhaps they should be merged into a single repository?