My last ICE car was a Mini Cooper JCW 6-speed. Still have it.
I love it for it's power-to-weight ratio and it's "go kart handling".
Besides being a daily driver it's been autocrossed and tracked plenty of times.
I have Miata friends and listen to the way they describe how tossable their cars are with a glimmer in their eye. I've driven their Miatas and I'd take my Mini's handling any day.
My current daily driver is a Model S 100D (not the P100D) and it is insanely fun to drive.
As far as daily drivers go I'd choose the Model S over the Mini 99 days out of 100.
It's over TWICE AS HEAVY as the Mini but that weight is about a foot off the ground, the suspension is more than up to the job of handling 2.5 tons, and it has a near 50/50 weight distribution.
The Mini might corner like a go kart, but the Model S corners like its on rails. I have just as much "fun" driving the Model S around town as the Mini but the effort put in to doing so is a mere fraction.
You present your Miata as a "balanced and good handling car", and I assure you; a competent electric car is 100% both of those things while also being effortless in traffic.
I grew up as a "driver" which is why the Mini is never going anywhere and other enthusiast ICE cars have made their way through my stable over the years. It's why I still choose a manual transmission car where I have to spool up the motor 1 day out of 100. And I don't foresee electric cars being realistic choices for a track day any time in the next 10-15 years.
But anybody who truly believes they aren't already sufficient for 99% of the car-buying public's needs* because they aren't "fun" either hasn't given one a shot or is in irrational denial.
* - Trucks are a different matter, but Musk hopes to change that soon, as well...