D&D does the curse lycantropes too and the "curse" type typically have some powers in their human form unlike the "wolf-mage" type and "wolf totem" type. "Wolf spirit" types tended to have powers in their "humanoid" for as well.Pop culture, probably. Many depictions of lycanthropes in media and other RPGs give them things like heightened senses and (limited) regeneration while in human form.
5e currently doesn't have multiple levels of senses. It's just Disadvantage, Normal, Advantage. So they're really not much between for the Humanoid's lesser heightened senses.