Regarding distance and speed.
I am ok with a warp jump to Bajor.
I can see it as a short warp burst with factor 1 or so.
Remember the Phoenix' first flight.
She warped for a minute or 2 and Earth was a lot smaller but still very visible. Distance between DS9 and Bajor is about one AU?
So at warp 1 it would still take about 8 minutes.
Seems reasonable to me.
And I think it is pretty clever to let the mission flow into each other like that. Keeps people playing longer.
They did that in Champions a lot and at least once in STO even.
Rememer the Guardian of Forever missions? Actually 2, but everyone treats and plays them as a single one.