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It is simply not acceptable to use the term "Tel Aviv Metropolitan Area" as a general name to refer to what Israelis call "the Center" or "Gush Dan".
This is not a term that is regularly used, and there is no agreement or binding definition as to what it would include anyway; many residents of Netanya, Ashdod, Kfar Saba, etc. absolutely do not consider their cities to be suburbs of Tel Aviv. Pointedly, the Hebrew language (and most other language) versions of this article are entitled "Gush Dan".
The link you provided, from the Israeli Central Bureau of Statistics does not use the term "Metropolitan Area of Tel Aviv" as a catch phrase as is implied in your article. Rather, it is used as a generic term, as population data here is tabulated BY metropolitan area. It does not in any way mean that there is an officially recognized term by that name.
By contrast, the following website from the Israeli Ministry of Tourism (a government website) explicitly uses the term Gush Dan.
http://goisrael.com/Tourism_Eng/Tourist%20Information/Discover%20Israel/Geographic%20Regions/Pages/The%20Dan%20Region.aspx?wbc_purpose=Basicitemsitemsitemsitemsitems
It is important to stress that this is a general name for a region. It is not a political subdivision and does not have official boundaries. However, for this region, the term "Gush Dan" is far more accepted and common than "Tel Aviv Metropolitan Area". The latter name should still be included in the article content, but as a secondary name. Please change the title of the article accordingly. 11:29, 3 May 2016 (UTC)JD