Dr. Finkelstein hit it right on the button. It is clear from the books of Kings and Chronicles that the Judeans (and certainly the Israelites) made bamoth, which were condemned by the authors and Deuteronomy but certainly existed. As seen in Arad, these weren't just simply altars but sometimes full temples. In all, this is a pretty neat find but it only confirms what we know.
Merkel says refugee crisis as challenging as reunifying Germany (Reuters)
from the article: Israeli archaeologists uncover ancient temple just outside Jerusalem