Daesh, Al-Qaida and Syria have a history of active aggression towards Israel. Calls of "USA the great satan and Israel the little satan" are not copyrighted only to the Huthis.
Also, we can't tell yet what are the intentions of the Sunnis, and if they end up taking control of the government alone.
So you're damn right we need to stay vigilant and defensive. the IRI and their proxies are not resting.