It was an uncrewed probe, so it probably didn't stop anywhere, just soared straight ahead through space. Also, with no need to use energy for life support, it could probably go faster than a crewed ship of the same vintage. It said stable, controllable wormholes were rare. The kind of wormhole we're talking about is the kind seen in ST:TMP, the result of an unbalanced warp field going unstable and out of control. No more so than the previous series were with each other, or with themselves. TOS said the Third World War was in the 1990s, TNG said it was mid-21st century. TNG showed the Federation conducting genetic engineering openly in "Unnatural Selection," then DS9 retroactively claimed it had been illegal since Khan's time. TNG claimed that holodecks were a novelty, then VGR said that Janeway had played in them as a child. And so on. Trek history has been constantly retconned over the decades, and the "correct" version is always the most recent one, because that's how fiction works. Credulity is broken when you start pretending the information from later series doesn't exist. By that logic, you might as well talk about James R. Kirk and lithium crystals.