Thrawn/JKR works against that team (assuming DR/DM/BSF/HK/GMY), but you have to get lucky to either not have GMY crit Malak when you call him to assist with Bastila (pretty good odds here, actually, GMY's crit chance is naturally low), or call GMY to assist against DR and hope that GMY gets his turn and kills DR before everyone's dead.
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About the team conposition being new, using GMY to prevent CBM is older than Malak.