As it is, the Delta Quadrant arc and its Sector Space make no sense. The northernmost system in STO's version of the quadrant is the Sakari System which is supposed to be in the Nekrit Expanse, and is seen in the 3rd Season VOY episode
'Blood Fever'. The southernmost system is the Wyanti System which is seen in the 6th Season VOY episode
'Live Fast and Prosper'. In between is supposed to be nearly
45,000 light years of travel, including the 9500 LYs Kes skipped Voyager over to avoid Borg Space; the territory covered by quantum slipstream during the whole affair with the USS Dauntless; the spatial vortex that took them beyond the 2500 LY long Void where they first met the Malon; territory covered during Voyager's own abortive experiment with quantum slipstream technology; territory covered utilizing a Borg transwarp coil; their brief use of Underspace during which they met the Turei and Vaadwaur; and territory covered utilizing a graviton catapult. Those in addition to the roughly 2500 LY they traveled by normal warp drive.
Borg Space was supposed to be roughly 10,000 LY wide in 2373-74, but is reduced to a quarter of one sector and roughly half of another one in STO. The Devore Imperium spanned three sectors and possessed warships that outclassed an Intrepid-class starship, yet they have no appearance and their name is reduced to one sector. On top of all that, the Delta Quadrant arc specifically states that Underspace is still the exclusive transport network for only the Turei and Vaadwaur.
How are Alpha Quadrant Alliance ships able to travel 45,000 LYs in the Delta Quadrant quicker than it takes to cross the Alpha and Beta Quadrants which are only partially represented? Utilizing Underspace would have been a good explanation, saying that it became well-known and traveled in the time since Voyager got home, perhaps used by Neelix and his group of Talaxians on their way backward along Voyager's previous journey and spreading word along the way in the Talaxians' usual voluble fashion. The Vaadwaur's old empire even utilized Underspace from their homeworld, beyond Borg Space and all the way at least to the Talaxian homeworld beyond the Nekrit Expanse. But the story specifically states that Underspace is still a mystery to everyone but the Turei and the Vaadwaur.
But beyond the travel time mystery, there are also civilizations they met along the way like the Devore Imperium which only gets a mention as a sector name despite their apparent strength during Voyager's encounter with them. Having the B'omar Sovereignty falling to the Vaadwaur makes sense, considering their patrol ships got outclassed by a shuttlecraft, albeit one modified by Seven of Nine. But Janeway - Janeway! - of all people submitted her ship to regular invasive inspections by the Devore because their ships were more powerful then hers, and they possessed
refractive shielding which were one step short of a cloaking device. This is the woman who constantly needled the freaking Borg Collective and was willing to TRIBBLE off numerous other civilizations that spanned multiple star systems before them. I don't see the Devore as having fallen as easily as the B'omar or the Krenim and their neighboring rivals, not without at least leaving more of an impact.
Comments
"Critics who say that the optimistic utopia Star Trek depicted is now outmoded forget the cultural context that gave birth to it: Star Trek was not a manifestation of optimism when optimism was easy. Star Trek declared a hope for a future that nobody stuck in the present could believe in. For all our struggles today, we haven’t outgrown the need for stories like Star Trek. We need tales of optimism, of heroes, of courage and goodness now as much as we’ve ever needed them."
-Thomas Marrone