Also had them mostly go back to 1 after a 5% FTP increase after a ramp test. This definitely needs some work, as this change was far too severe relative to the FTP change. I will be manually adjusting the next few workouts to be harder to get my progressions to a more reasonable place.
For the FTP and under categories, it seems to me that these should be shifted down by some amount. If I just did 180 watts for 2 hours last week and that was a 4.9 tempo, and then my FTP goes up by X%, it is very reasonable to assume I can still do 180 watts for 2 hours. This may now be a 4.1 tempo, or maybe a 4.5 endurance with the new FTP, but just bumping all levels down a bunch is clearly a quick and dirty shortcut.
Something along the lines of re-evaluating the levels past month of so of rides based on the new (higher) FTP and generating the new progression levels based on that would likely be better than making seemingly arbitrary decreases. (Note that FTP decreases would likely need different handling)