Come on Roguey, we're still waiting for solid proof that those elements stem from a cargo cult approach...
As for Risen 2, it is in many ways not representative of the four games that predated it. Criticize Gothic 2 instead.
Comparing the Witcher to Bioware games is arbitrary, but no less than you deciding upon your cargo cult conspiracy theory i'll give you that.
Divine Divinity on the other hand suffers from being a paradox : one foot in the H'n'S, the other in the living, open world territory, resulting in a world of half-solutions. DD2 is also very actiony, but its expansion pack is a true piece of CRPG, where lore, world building and quest branching are totally intermingled. Granted, for OS they've yet to prove they can transpose that to a more open world though (Flames of Vengeance is only a hub).