No one is arguing this. What some people are arguing is that Lotus is not in a position to play this game. They aren't Porsche. They have a terrible dealership network, little brand cache and a reputation for unreliability. The Emira being on par or "within spitting distance" just isn't good enough IMO to get people making the trek to a "local" dealer. You do this by beating your main competition (Porsche) and beating them cleanly. That will get Joe-Porsche's attention. There appears to be very little the Emira clearly beats Porsche at. Maybe looks, but that's also subjective.
I think in the end some people are just tired of excuses from and making excuses for Lotus. You got billions of dollars and IMO what is there to show for it? A possibly heavier, better looking, de-tuned Evora GT with a nicer interior for $94k? Sorry, to me, that's just not good enough. Maybe I am in the minority and I hope Lotus does well, but I was excited for the Type 131, and was completely underwhelmed by its announcement. I am sure it will be a good car, but I am going to wait and hope it matures into something better. In the meantime I think I will try some other brands.