I don't see how this would be an issue. The Vulcans feel the project caused the Burn. So it being labeled for the year during which the Burn happened would make plenty of sense. That is, if the label applied to the year during which the project would be put to action, rather than to the one during which it was initiated, and even in the latter case we'd have a problem only if there was a significant difference between the two.
According to Vance, SB-19 was the insta-travel project, and the sensors were just subordinate to that. Nothing need have been in place significantly before the Burn, and regardless, the Burn and the label on the tin could both relate to the moment the Head Pointy-Ear pressed the fateful button to initiate the Great Experiment.
Yup. But 3019 for the Burn could also be right. We just haven't been given enough detail yet. (Memory Alpha assigns sharp years to the events, but wholly without onscreen basis - we don't really know when Ni'Var seceded, say.))
The subtitles do give it as SB-19, just like Vance pronounces it.
Timo Saloniemi