I dont really see it being due to a hiccup... Its jus the common trend for roma...
They sit further down then they rise for a season maybe 2 then they fall for a season or so...
last 6 years finish : 6th, 1st, 2nd, 8th, 2nd, 8th
The same pattern can be seen if you look back to the ten years before that (though the same swing not reaching the same height)...
This same pattern actually continues back even further...
Roma, a team throughout history that are one minute great and the next absolute shite... its almost allways been the case... A consistent team roma have never been