Blacklist Feature for Document Tree Macro

As described in the comments of "XWIKI-12895" - "Document Tree Macro should allow excluding a list of spaces" the blacklist feature is a needed improvement for that macro.
It would be great if someone could include something like
#set ($blacklistedSpaces = ['Main', 'AnnotationCode', 'ColorThemes', 'XWiki', 'Panels', 'Scheduler', 'Stats', 'AppWithinMinutes', 'Blog', 'Space1', 'Space2', 'Space3', 'Space4', 'Macros', 'Space5', 'Space6', 'Space7'])
this or any other blacklist function with a documentation in the manual of Document Tree Macro.

Thanks in advance and kind regards
Timo Dachs-Wegmann