Yes, definitely. The last two points are only possibilities. Still, the question is:
Because it creates the basis for the canon version and allows for a fun event that people can enter their creations in. Unless you want to explain to a LEGO community why they aren’t allowed to enter LEGO MOCs?
So, we are a Lego community… then why is a picture the important part and not the MOC? Though not to say we shouldn’t have the picture. Rather, the MOC should get the same care as the picture in terms of canon conformity.
I wouldn’t say the Helryx artwork took too many liberties. What specifically do you think was too far removed from the model?
I’m talking about the entries in general. An entry that looked completely different could have won. Meaning that ultimately whatever is voted for in the art portion decides what the character looks like, and the MOC can only be 100% sure of having a minor impact. Everything else is based on voting for the art.