The big flaw with this statement -- and the crack that has opened the door to homosexual promotion not only in the Catholic Church but throughout our society -- is that homosexuality is something one "discovers" about oneself.
If a sinful propensity to commit homosexual acts is something one "discovers" about oneself, then that must mean one was "born" homosexual and therefore "is" homosexual and therefore should be allowed to engage in homogenital acts.
The false idea of "being" gay as opposed to "having" a sick and sinful inclination has opened the floodgates of perversion in the Church and all other facets of our society. The antidote to this widespread error in thinking is to recriminalize homosexual acts.