The whole "pas pedal" becomes faster/slower (one pedal driving) is coming to an end. Its being banned as default in the world's largest EV market (and largest EV export country).
Losing muscle memory of pressing the brake pedal. Makes sense, actually.
China has banned "one pedal driving" as a default.
Regardless, your point stands. People that have gotten used to not directly using brakes to indicate you are slowing down is a dangerous thing with how reliant we are on the standard indications that you are slowing. All the more so if you need to rapidly lose a ton of speed, where even regenerative brakes often fall back to friction.
Most, if not all, EVs will light up the brake lights when you're slowing via regen braking as long as the deceleration rate is above a certain threshold. I know my Tesla does.
Emergency brake systems probably help a lot with this problem, of course. Still seems wise to follow some of the older practices that we used to drill into people.