Here comes the next hype: no, there are no 'Houthi air defences', and they didn't shot down a Saudi jet over Ma'rib.

Saudi (or, more likely: Emirati) air defences have shot down a Houthi/Saleh ballistic missile over Ma'rib.

And finally, thanks whomever, a sane assessment in following regards: Iran’s Small Hand in Yemen (though I wouldn't call that even a 'Iran's Small Finger in Yemen'):

Claims of Iran’s influence over the Houthis have been overblown. While the Houthis do receive some support from Iran, it is mostly political, with minimal financial and military assistance. However, since the Houthis took control of Sanaa, the group has increasingly been portrayed as “Iran-backed” or “Shia,” often suggesting a sectarian relationship with the Islamic Republic. Yet until after the 2011 upheavals, the term “Shia” was not used in the Yemeni public to refer to any Yemeni groups or individuals. The Houthis do not follow the Twelver Shia tradition predominant in Iran, but adhere to the Zaidiya, which in practice is closer to Sunni Islam, and had expressed no solidarity with other Shia communities.

Although Iran sees cooperation with non-state actors as an integral part of its foreign policy to protect and expand its influence in the region, its support for the Houthis has been marginal.
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