[@Kho] Masonry and Carpentry also went high. Plus, I really don't think Rome being up would have been good for Europe, it didn't fall overnight, there were concrete reasons why it went from glory to ruins in a few hundred years, by the time the vandals and goths got in Rome was not even the capital of western rome anymore, and eastern rome with Constantinople and stuff was all the jazz, but even there, the flaws of Rome's system kept weighting the place down. 

So yeah. 
Technological degradation? Surely not.
Economical and governamental degradation? Absolutely
Social degradation? For who? Because a lot of people lived as poorly in rome as they lived in feudal france.

And yeah, the king of england in a mud house was more technologically advanced than the roman emperor. I mean, my house is shabby if compared to Babylonian palaces, that doesn't make the Babylonian palace more advanced, they are more complex, and complexity exists without tech.