Did you enable and pick it in the "AutoPAR" options? I have pretty much the same filter and I'm not getting NFO and SFV files.
[10:47:24] DEBUG CAssembleRAR OpenUnRARPath #1:X:\Down-Load\UnRA57C_tmp\|X:\Down-Load\UnRA57C_tmp\
[10:47:24] DEBUG CAssembleRAR UnRARPath #1:X:\Down-Load\UnRA57C_tmp\
[10:47:24] DEBUG CAssembleRAR UnRARPath #2:X:\Down-Load\UnRA57C_tmp\
[10:47:25] HIGH HFC: Rejected RAR Filter: Filename Filter ss.s24e182.720p.hdtv.x264-fihtv.nfo
[10:47:25] HIGH HFC: Rejected RAR Filter: Filename Filter ss.s24e182.720p.hdtv.x264-fihtv.sfv
[10:47:25] HIGH HFC: Rejected RAR Filter: Filename Filter ss.s24e182.720p.hdtv.x264-fihtv.srr
[10:47:25] HIGH HFC: Rejected RAR Filter: Filename Filter ss.s24e182.720p.hdtv.x264-fihtv.nfo
[10:47:25] HIGH HFC: Rejected RAR Filter: Filename Filter ss.s24e182.720p.hdtv.x264-fihtv.sfv
[10:47:25] HIGH HFC: Rejected RAR Filter: Filename Filter ss.s24e182.720p.hdtv.x264-fihtv.srr
This is what I see in my logs.