Waved blades debate - combat value

[Radu Transylvanicus]

Mabagani, with all respect to the traditional or spiritual, does a waved blade inflict a deeper cut, a longer cut or presents any advantages other than visual over the classic cutting edge?
I find elements like weight, shape, curvature, length, sharpness, material type to make a crucial difference but a waved edge does not seem to change eficacity. The most honest working waved blades I see it in the Moro Keris and the Landesknecht which seem to not loose their capacity of combat eficiency but those like some African or Hindo-Persian weapons have nothing but to loose by keeping the blade shape in cause and so far I am convinced its nothing but a matter of esthetics, likely the case with absolutelly all of them.
In the case of the Moro (Tausug) blades is there any action or effect waved ones can inflict and the others cannot ?
Waved blades have nothing in common with saw or serrated blades in case anyone tries to open that up...