I don't see how the absence of Exporter in any of those modules would cause breakage. Can you provide more details ?
Because the solutions that assume Exporter specifically assume the existance of @EXPORT in every one of the sub-modules. My Two.pm does not contain @EXPORT, and thus none of Two.pm's functions would be exported to the tldr script if my ::All had our @EXPORT = (@Mod11146642::One::EXPORT, @Mod11146642::Two::EXPORT); instead of the our @EXPORT = @inherited; and the stash-diff that populated @inherited. If I used the EXPORT-assuming line, ignoring @inherited, I would get
C:\usr\local\share\PassThru\perl\perlmonks
> 11146642-tldr.pl
Called Mod11146642::One::oneFunction()
Undefined subroutine &main::twoFunction called at C:\usr\local\share\P
+assThru\perl\perlmonks\11146642-tldr.pl line 14.