The sequential transmissions (I assume DCTs) are just so far superior to a manual in terms of real world performance numbers, it's no wonder most of the exotics have gone that way. Sure, the paddle shifters aren't as sexy as a real manual, but they are just so much better.
Totally agree, especially with your last sentence and like I pointed about above, that subjective measure may mean a person would prefer a manual, but there's not really any objective measure where it's better (barring a few outliers here and there, and/or on older sequential setups like SMG).
Plus, now that I've had a change to drive a few SGB cars: BMW DCT in 135, 335, M3), Porsche PDK in a Boxster, 911, GT-Rs, I totally get it. It's also the ultimate in convenience - when running in manual mode, it's the driver-car connectivity you want, and in auto mode is _so_ nice for traffic, or handing the car off to someone who can't operate a traditional manual.