He probably was, although is probably confused as he said "Is that to say that I can remote into a surface pro with this new chip?" - as mentioned, you can already remote into a surface pro (even with 4200U). VPro adds features that allow you to remotely access the device 'out of band', that's to say, while the OS is rebooting, access the BIOS settings etc. Barely useful for most users I'd say, unless you're using it as a permanent workstation (I wonder, would it even support 'KVM' over wireless...)
The big caveat here is that this would almost certainly need firmware support, which presumably MS are working on for corporates but it's no guarantee that this would come any time soon - that's probably something touted for the official Surface 3 as to state that Surface 2 supports this (on an unofficial S2.5) would be a logistic nightmare for them.
The other feature of the 4300U is VT-D, which is nigh on irrelevant for tablets/laptops where you don't have dedicated resources for virtualisation.
