I really think (and have observed anecdotally) that the manual thing skews demographically to those who grew up with manuals being the only real option for sports cars or even sporty cars. There was a time when automatics were heavy, slower, and had fewer gears and really dulled the driving experience. There was no comparison, for instance, between a 5-speed Aston and one with a GM 3-speed auto in say 1981.
I am of this demographic. My first cars were all manual and felt very engaging. Something as simple as downshifting when slowing down, for instance, weren't even viable on most automatics until Tiptronic came along.
I will happily confirm that modern autos are indeed amazing. They will downshift, find the right gear, and when programmed right, make manuals look like an old complexity fetish of the past. I have had this experience, for example, with modern BMWs. And then there's dual clutch systems (like modern Audis) that seem even better yet. Choose between a chill setting (and software map) and a more engaged setting "sport" and off you go. Point and shoot. Great, simple, straightforward. And BMW's automatics are very good when you shift them manually as well.
So can the Emira be great with an auto, or a DCT? I'd assume absolutely. And likely more usable daily (traffic!) and also likely faster...because left leg plus right leg plus hand can't move anywhere nearly as quickly. I truly get it, and if at a meet at some point I have a chance to try an auto Emira I'd love to.
As for me I know I'm of THAT demographic where a sports car is manual. My music tastes, my clothing, my everything is locked in right around 1987, which is roughly the time when I saw my first Esprit in real life. I'm okay with that.