Point of flaming missed farm

Hey so ive been trying to pick up a secondary role to play after getting a good handle on top lane being a m7 gnar i figured eh why not try adc it seemes to be an interesting role so after spaming some drafts i noticed a reoccuring theme if i miss any kind of cs im flamed by my support i would like to say im decent farmer being a silver 5 rough 200-250 by about 30 minutes so whats with the support flame their job is to keep me alive right so how does farm i miss accidently critically effect the game less farm just means less gold and so we play safer