It would be useful for testing issues that arise in dev/prod environments that may possibly be related to the caching of redis connections to make this optional.
Currently, our environment.xml and config manager don't have functionality for adding plugin specific options. This is also true that the plugin infrastructure/interface itself is missing acceptability and context to any such global config settings. That being said, the latter does seem to be coded in the LN repo as is evident by its use in the address cleaner plugin. In addition, that former is being developed for 6.2.