The natural signification of his refusal to genuflect or kneel before the Blessed Sacrament is that he believes it is a piece of bread.
He wants the world to know—yet he knows no one can be tried for heresy for the wordless omission of a gesture.
Very cleverly calibrated. Send a loud and clear signal—but you can splutter at and mock anyone who voices the obvious meaning of the signal.
That's probably why he wants to allow Catholics living in a persistent state of mortal sin, like pro-aborts or adulterers, and even non-Catholics to receive Holy Communion.