I am not a fan of thunderbolt for the same reason I never liked firewire. The technology to make it secure doesn't exist or isn't widely implemented, researched, or published. Proprietary = security by obscurity. Thunderbolt has direct access to the computers hardware layer. This means there is no software or firmware that could detect an attack, so the potential for abuse is unlimited.
There is technology used by newer PC's to sandbox devices with this level of access, but it is rarely enabled except on Virtual machine hosts.
Here is a 20 year old firewire hack used to hack a MAC over thunderbolt... ttp://preview.tinyurl.com/75uspch
IDK, but this still seems like pushing for a title no one is interested in. Yeah, it's fast and lots of bandwidth, but as we've seen so far, there is just no interest in it. Very few people are remotely close to needing this kind of bandwidth. It's not a problem with the tech, but with the fact that it simply has no utility. You'd need a lot of monitors all running full HD, and a bunch of hard drives, to even approach using such bandwidth. I wonder if there was something better they could have spent time on that would be of more immediate use.
There are plenty of things developed that have no immediate mass market usability. You never know what may come along and suddenly make this a must have piece of tech. Even if nothing turns up it's better than a company that releases "new" versions of the same phone for 5 years.
Useless for average person unless they have 5+ SSD's raided together in an external case to utilize that speed. Until SATA is faster, there is no way to use it all. USB 3.0 is still great and works with all the old stuff so its hard to make most people switch.
At this point, it might be cheaper to go optical and never have to worry about upgrading cables ever again. Of course, this brings with it the trouble of educating people into properly caring for optical connectors and handling optical cables.