I understand that you need to pretend that all things are 'equally real' and that your centaur picture is 'relevant'.
You merely want to disguise the basic metaphysical nature of evolution by pretending that people either believe that evolution is 'scientific' or believe in centaurs.
A foolish position, but ultimately where you must go to preserve 'evolution as science'.
That pretty well sums it up. Evolution sis scientific regardless of whether it is the last and final description of its subject. Evolution could be completely wrong and still be the current best explanation for the available evidence.