They did actually hijack 1 ship and have kept it and it’s crew hostage, the Galaxy Leader. While there have been misses and successful interceptions, several ships have been damaged.
When you insure ships, you take notice of these kinds of things.
https://en.m.wikipedia.org/wiki/Houthi_involvement_in_the_Israel–Hamas_war
My impression of the Russian communist party is that they’ve become more a nationalist party than anything promoting class struggle.