Bearing off at the crest prevents the stern from falling into the trough. In a gale it may be prudent to heave to. In this state, the boat will make leeway rather than resist the wind or sea. Surprisingly, the ride when hove-to is quite comfortable compared to being underway. But perhaps more importantly, the boat is safe.
Most offshore sailors are sceptical of sea anchors.
In fact, these storm devices impose dangerous loads on the yacht. Drogues spin, twisting up the tether. In this state, a yacht is left to find its own position in the waves under bare poles and rides, rather than resists, the waves. Another effective tactic is to tow warps in hurricane-force winds. The Copelands towed a Danforth anchor from 300 feet of line.