There’s normal, and then there’s normal. Which is to say that while much of aviation relies on routine procedures and aircraft configurations, among other things, there are exceptions to most norms. For example, the FAA long ago declared a “normal” landing to be one with an airplane’s wing flaps, if any, fully deployed. That’s not the same as saying we always must extend full flaps before landing, no matter what. Like in a stiff, gusty crosswind, for example, whose presence means the landing is not “normal.”
This is a companion discussion topic for the original entry at https://www.avweb.com/flight-safety/technique/flaps-in-a-gusty-cross