HRC is not a small-o orthodox Christian; she is a Situation Ethicist. Situation Ethics was invented by Joseph Fletcher in the 1960s, and it said that the laws of the Bible were superseded by the law of love--except that we get to define what "love" is, what the "loving thing" to do is, in any given situation: cf. here.
Most liberal denominations, and liberals in Christian churches, are Situation Ethicists in one form or another.
What speaks volumes is this denomination allowed her to finsh unchallenged. It seems theyre as corrupt and undecerning.