As EVs are mostly charged overnight or very frequently the occasions where it drops to below ~50% won't be that common. Maybe on longer journeys & especially at cold temps but then who plans to race everything else on the road & at all times anyway? In addition, a sub 5sec car at 50% is still extremely quick.
For the record I will most likely fit into this category, I know, I'll apply to Tesla for a £5k performance rebate - that seems totally fair