Nowhere was it implied that all laws should have sunset clauses. Obviously something like “you can’t murder someone” should not be sunset.

Including sunset clauses in many laws requires legislators to review if those laws are still relevant and modify them accordingly. The law in question here is a perfect example. A bale of straw is not the best way to signal to boats that the bridge height is lower.

Anarchy is not a desired state, but neither is a state where outdated rules hamper activity for no reason other than “we are too lazy to assess the relevance of existing rules”