Just Why low rank killer high rank survivor?????????

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Whenever i reach rank 12-10 in killer then the survivor would at least have two red rank and also purple rank, just WHY??? shouldn't be like high rank killer high rank survivor? what the hell is the use of ranking then?????? I'm not that a good killer so why just i'm competing with the top and mostly SWF. Yeah i know BHVR can't do anything about it anyway