It all depends on how complex their calculation is.
I reckon it just weights more recent results higher, and considering our last 5 aways have been tricky - Reading, Wednesday, Burnley, Derby, QPR we have not done badly.
Also, it cannot possibly predict January player acquisition.
This prediction relies on us averaging 1.56 points per game for the rest of the season (we're currently on 2.04 PPG). So, quite a drop in performance is needed from the Albion for this prediction to come true. It would probably need major injuries to Kayal & Stephens plus CH leaving the club to happen.
EDIT - We averaged 1.17 points per game in the 2nd half of last season losing 10 matches.