Nothing new under the sun here:

Developing doctrine = changing things because "now we know better, we have been enlightened on all things sexual"

The procreative norm has "far-reaching consequences"? I don't really think that's the case. In fact, I would say sexual acts without the procreative norm have incredible, obvious consequences, i.e. Psycohological.  

I think that the author and those who support her position need to take some time to really grapple with and understand the Catholic Church's position on sexual ethics. Read Aquinas's philosophical arguments, read JP2's "Love and Responsibility" and "Theology of the Body". Read the countless other philosophers who have written on this topic. The truth is evident. 

And please, don't reduce their arguments because they are written in a different time. Truth is eternal. If, after reading these texts with an open mind you still disagree, then we'll talk.