Excellent catch! I totally missed that (as obviously did she).
I often find the McMansion blog frustrating because of stuff like this; while I share her distaste for design mismatch and ginormous tat, she doesn’t seem to have any sympathy for why things are the way they are.
I also shudder at what she would say about my own house, which has more roof angles than the cabinet of Dr. Caligari.