To answer your question re. =toys: Absolutely not. It's a miniature store, not a toy store. More appropriate tag may be shop=model
It is mentioned in https://miniatures.org/sites/miniatures.org/files/MJ15Gazettevol43no5.pdf (Miniature Gazette), you can see pictures in there for the type of products they deal in.
The particular node is possibly a defunct business. My changeset was particularly unifying shop=doll_house spelling variation of the tag to more appropriate shop=dollhouse
There could be possibly a better tag for these kinds of stores and stores with dolls (and other otaku goods).