I've found that even among technically-aware EV owners that fact is not widely known. Due to that missing feature, one-pedal is the only practical operating mode. I believe the Mini-E is the only other BEV missing that, while even GM's EV1 had it.
The problem is that the fail-safe mode for those systems are conventional brakes and so their role can't be compromised despite that they are hardly ever used in normal conditions.
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I think the reason for drums is also about disk rusting being a common problem in Germany, especially on the rear. The Ioniq 5 and EV6 have a little-known feature where foot-brake blended regen is temporarily disabled for at least 10 braking cycles when the selected regen mode is Level 0, which is essentially just coasting. It's in the owner's manual but few seem to notice it.