Umm usually that's how great teams dominate ie by being much better than the opposition(s) in some or several aspects : bowling, batting, fielding. I hope you're not making the case that current India is dominant because they're not. Or maybe you're saying they're not dominant because they're several strong attacks around (idk).
Regarding the comment about the 80s, true no team had an attack as strong as WI but none of the attacks were absolutely dire either:
Pakistan: Imran, Safraz, Qasim, Qadir later Wasim
NZ: Hadlee, Chatfield
India: Dev
Australia: McDermott, Hogg, Reid, Alderman, Lawson
England: Botham, Willis
Bear in mind when WI began their ascent to greatness they did so vs challenging attacks and teams:
India would've had Bedi, Chandra, Prasana and Venkat,
Australia: Lilllee, Tommo, Mallet, Walker, Pascoe etc
Eng: Snow, Underwood, Hendrick
Probably the best period of parity among attacks would've been the 90s imo.