Awkward timing, considering GM's commitment to switching to NACS in under 2 years in full -- will they have proper V2H available on NACS-and-Ultium equipped GMs out of the box?
Present tense? The PDF you linked literally says that V2L is TODO and not specified yet.
"Future versions of this technical
specification will specify the functional requirements and
specifications required to achieve vehicle to X power transfer."
I think this speaks well of Tesla's plan to be more than a car company, but an energy company. Once you have the technology around batteries and the mass production to back it up, it flows easily into motor vehicles and general energy storage. At that point, getting into solar becomes the next logical move. The only piece that becomes difficult is the Tesla Supercharger network which seems to add more complexity and upfront cost then most companies are willing to pay for.