The black hole one seemed to be working in game as of a week ago when I lost a chunk of my damaged fleet near the black hole... they seemed to take the appropriate amount of time to jump as per the info card. I have not played a map with a neutron star to say if that is working or not.
*Disclaimer: I am not a modder, so I do not know with 100% certainty that it is in fact working
Edit: I reread your post. The debuff to phase drive spin up time is what I was referencing, as far as I know the phase lane speed is still broken and works at full speed.