https://www.boldmethod.com/learn-to-fly/weather/what-is-worse-light-or-strong-crosswind-landings/

extraits

How Can A Light Crosswind Cause So Many Problems?

As the saying goes, « the devil you know is better than the devil you don’t. » When you’re dealing with a strong crosswind, you know it’s there, and you’re ready for it. But when the winds are light, they’re harder to perceive and prepare for. And even in a light crosswind, if you’re not prepared, things can quickly get out of control.

In all of these accidents, the pilot either wasn’t prepared for the crosswind, or didn’t perceive there was a crosswind significant enough to affect their landing or rollout.

And in all three accidents, 2-9 knots of crosswind was all it took to send the aircraft careening off the runway.