ForeverPupa
although Maria has been genuinely loyal to her mentor who uplifted her life from poverty,she stil supported , encouraged and was a part of sins like abuse,violence ,crimes etc and has been ruthless to innocent people like chloe so she deserves death (than forgiveness), natural or get killed brutally whatever it be. Her living can be a hindrance in toppleing Vincent Gray and his company.hence I'm happy that she disappears from their lives.