Should the Saudis authorise the US to use military force against Iran ?

Is there actually someone that can explain to me why the idea that Houthi rebels in Yemen who are claiming that they did the bombardment are not taking serious? Because I find that really strange. You have a movement that is know to have serious issues, that uses terror, that has a reason to retaliate after what is going in Yemen. There is actually animosity between the two fractions. They claim they did (knowing full well there can be retaliation)... and yet, Iran is still the prime suspect?

Now, Al Quada and the ISIS also claimed a lot of incidents because they wanted to create this sphere of terror. If someone slipped up over a snail, some ISIS member would claim it as a political act for the cause. But this case just looks diffrent to me? Or am I missing something? Just asking...