Maybe I'm reading too much into it, but "Prologue" feels to me like it's placing a full-blown EV transition in the future rather than something that's really begun, which seems to still be the general vibe among most of the traditional automakers.
Or in this case, since it's mechanically a GM Ultium vehicle (a modification of the Chevy Blazer), it's a prologue to Honda producing their own EV from scratch?