It's not that there are no voices in the Church proposing the points of view of progressives, because there are and have been.  The problem is many were silenced by the previous two popes...not so much under BXVI, but under JPII and BXVI when he was head of the CDF.  Over 100 theologians to be precise.  That had a dampening effect on a lot of theologians both lay and religious.  All one has to do is look at the abuse Pope Francis has taken over AL and even the hint that divorced Catholics without annulments can receive Communion.  There is a super need on the uber right for truth to be unchanging truth even when enforcement of that truth becomes a counter sign to charity and a bludgeon of anger rather than a sacramental sign of love.  In my faith journey love trumps truth because truth is relative in a Universe based in quantum relativity.  Even Jesus defined God as Love, not truth.