It would also be very interesting to get the full Bacon quote referenced in that excerpt from page 168, because i think there are lots of subtleties in that too.
One such subtlety is that the statement as quoted doesn't necessarily address the issue of whether the "final cause" is true. if in fact some supernatural force as a "final cause" does exist, then I am not entirely sure myself whether it would make sense to worry about the intermediate physical causes.
i can see a good argument that It's the fact that the supernatural final cause does not exist that makes knowledge of the intermediate physical cause particularly important.
Which means to me that it's really important to be clear and state the uitimate conclusion (that the final cause does not exist) as you are saying.