I agree it was deliberate.... but unless you can prove otherwise, I'd assume it was just an easy dig at Nvidia, as the similarity of "Volta" and "Voltage" was too easy to resist....
Not only does the trailer contain ZERO hard information (it's a trailer, and not supposed to!), it would be pretty foolish to draw ANY conclusions from it...
If we look at history, and see how AMD has competed with Nvidia at the high end (or, more accurately, NOT competed with Nvidia at the high end), I fail to see how you think AMD will magically not only compete with Nvidia's high-end GPUs, but actually be competing with Nvidia's unreleased high-end GPUs slated to be released in the future...
If you've made this far-fetched assumption solely based on the split-second sign of "Poor Volta", then I can simply assume you're not very bright... but if you have any other information that backs this up, PLEASE let us know!