I agree with this, however I think it's wrong to say that it's what a bionicle characters would look in Greg's eyes, since he's not the artist. However, this does seem to be the most accurate representation of canon, being that it's not unrealistically gappy or blocky, and incorporates both the organic and mechanical nature with a flowing design, while still staying true to the aesthetics what many consider to be the most canon appearence, the sets.
The movies are notorious for having uncanon designs, or more specifcally, the masks, which was done to more easily express emotion. This doesn't have any of that. Is there artistic license taken in this? Absolutely. There is artistic license in all art.
But yes, none of this is really news.
Voriki was a fake leak, he was never going to be anything, LEGO didn't ever plan to make him, nor did they invent the concept of him.