Most of those are metaphors anyway, so "unicorn" or "ox" doesn't make much difference.
So, while it may lead to "which version is the inspired word of god?", that isn't so much my rub as is the question "why do you choose one version over the other in a particular instance to suit your argument, then a different version for a different argument?".
If they are choosing the version which best suits that particular argument, then it looks a little sneaky. However, if they are just choosing the version that seems to be the easiest to read presentation of that particular part, then maybe it isn't sneaky.
You know, and I know, that if we suspect the former they will say that it is the latter. And they probably even believe that.