Deloads are crucial to schedule into your off-season, because they allow your body and nervous system to recover from heavy training.
You MUST have them to avoid plateaus, and continue making progress throughout your off-season.
However, most programs take deloads lightly, and snuff them off because of the “alpha” mentality a lot of coaches have…
And their athletes end up fatigued, injured, and inflamed.
There’s a time and a place for “going hard”… and there’s a time and a place for taking it easier… but most programs don’t take this into account.