Yes, the article is only speculation of the relationship between Square Enix and Disney.

I have heard the following:

Kingdom Hearts, Kingdom Hearts II, the Kingdom Hearts media and all respective logos, characters, artwork, stories, information, names, and other elements associated thereto are the sole and exclusive property of Square Enix Holdings Co., Ltd., The Walt Disney Company, as well as their subsidiaries and affiliated companies.

This means that Square Enix and Disney retain rights to the properties meaning that any merchandise would run into a licensing issue unless the companies worked together to produce it. Maybe it is too much of a hassle to have a third party produce the product and have both companies license and approve it? The video game merchandise market is not very large right now.