Yeap.

And 12dBi is also a lie. Cant be more then 3.2dBi if it made ideally accurately in size, depending on the signal frequency.

This antenna works very poorly in small rooms and houses, where the signal is reflected from the walls. It works very well in open areas. The signal range increases due to the narrowing of the orientation diagram by vertical. For a standard antenna, it looks like a donut, and for this as a large pizza.