The Tesla appeals to a different class of person who is purchasing a car for different symbolic reasons.
Initially, the Toyota Prius 2nd Gen was panned for its ugly look, but ultimately its distinctiveness became a marketing point as it became a status symbol of its own right - as evidenced by Honda copying it in its 2nd generation Insight.
The subjective qualities that define the 'desirable look' of the Misson E may be rejected by some segments of the Tesla market.