A lot of people do have a romanticised view of adoption though.
Have seen it even on here people saying things like "well we can always adopt" when talking about potential fertility problems, or suggesting other people might like to adopt, followed by "because there are so many children out there in need of loving homes," almost in the same way as you might talk about going to the local animal shelter and picking out a puppy or a kitten.
The problem with failed adoptions is that it's something that isn't talked about, so it's impossible to know just how common it really is for adoption to go wrong.
Personally I know of two people who have had failed adoptions. One was my dh's boss, who adopted a little girl, and who then gave her back after a year because she apparently didn't get on with her biological child, and the other was someone my mum worked with who adopted a sibling group of three, and who ended up giving one of them back due to the issues he had - I don't know all the details, but afaik they were deeply damaged children, and in the case of one of them this resulted in serious violent outbursts etc. But this has now meant that the sibling group has been broken up, as they have kept two of the children and given one back into care.
I imagine though that it's difficult to talk about these things because of the judgements that you will incur from your peers. I know my dh's boss was given a very hard time after she gave back her adopted child, although my dh had left the company at that point, but according to one of his colleagues, she had pretty much lost all respect from everyone who worked there.
The woman in this article certainly didn't seem to know what she was getting into. And I certainly don't think that going on chat shows and writing articles shows her in a good light.
But if we disregard the way in which she has handled herself, it does give out a message - that adoption does go wrong, and this is perhaps something that people need to be aware of and that needs addressing.