I think this was an interesting and useful article.
I think suppositions that writing an article like this is about getting a sexual thrill are highly speculative.
In my experience trying to talk with people about AGP often falls flat because they can't quite get their heads around how it works. They can't imagine themselves thinking or feeling that way, or in any way that seems similar, so they tend to dismiss it as made up. So I think it's extremely useful to have someone try and describe what it's like or even just say they experience it.
My sense from the article was that Debbie was not describing presenting as a woman in an everyday way as directly a sexual thrill. More that one of the wider effects of the paraphilia was a strong sense of discomfort or disassociation with a male body on a daily basis. I imagine this as a sense of duality or disassociation from self, but that is very much my own thought and might not be accurate. and the transitioning was meant to alleviate that aspect rather than be a sexual act in a direct way.
I do wonder if that would actually be the best way to treat the problem, as it seems to have so many downsides, including that I would think that it would further tend to increase the paraphilia and accompanying sense of disassociation. Trying to lesson both seems like a better option to me, strengthening the sense of self as male or unified - I'm not sure how that would look, but I would like to see that sort of approach as the first one and also attempts to try and make it more effective.
On the other hand it may simply be that in some cases, for whatever reason these paraphilias develop and they are resistant to treatment, and people have to make do with less than ideal solutions. Which unfortunately included their families. In such cases though I think it would be much better for the individuals and their spouses if they could honestly acknowledge the nature of the problem, rather than being told their spouse is really a woman and they should be happy that they are now fulfilled.