Why no fix fist the bugs, then nerf things latter?
Perhaps because FD have more than one developer, each with their own areas of specialization and responsibility. And there is a system of priorities when it comes to features/tweaks/bugs. If we assume they are using a typical agile/scrum methodology, then every day they will have team meetings where people report their progress from the previous day and tasks are assigned based in priority. Team Leads and Managers will likely have daily and weekly chats to discuss things like priorities for the day and coming days.
Now, looking at the current state of the game, what we know publicly of their priorities and then compare with the "bugs" you raise here. Assuming any of these were even on the radar for the meeting, i think it would go like this:
Problem: "I lost my target USS when interdicted."
Response: "Normal, you fly around a lot while being interdicted. USS only stay valid for a short range. Next."
Problem: "I lost my target next system route when interdicted."
Response: "Hmm.... yes, suppose it shouldn't do that as long as nothing else has been targetted. Give it a low priority though along with low serverity. Mark workaround as being to reselect target after interdiction."
Problem: "Can't use galaxy map with oculus rift"
Response: "Hmm, i've used galaxy map with occulus. Must be a specific configuration or driver issue. If the player supplied full hardware and driver details via the support site, then pass it over to the hardware specialists, see if they can figure it out. Priority? Well, its not a blocker and this is the first report we have of it. Medium priority, tell them to look at it when they get a minute or two. If estimate says it will take more than a few hours to fix, then drop the priority to Low."
"Now, can we move onto the major issues for the day?"
Ok, of course i'm not saying this is exactly what they will be saying in response to such tickets (you did ticket them didn't you?), but its probably a fair guess.