Remember, Dark Urge before the memory loss seemed VERY enthusiastic about their killings, such that they clearly enjoyed it. I doubt there was ever a need to "cope" with it.
If so, then what would the whole 'resist the urges' thing be about?
Likely that the Dark Urge has been given a clean slate to choose differently.
"This woman has come in contact with Tokyo's manga. She is Unclean and would lead we righteous ones astray."
