Both Real Zaragoza (21st) and Granada (14th) are in very poor form, with neither team showing strong attacking output. Zaragoza's recent form (D-L-L-D-L) includes many low-scoring games, and while Granada has some goals in their recent losses, their overall form (L-L-W-L-L) suggests a lack of consistent scoring. The implied probability of 75.2% for 'Over 1.5' seems too high for a fixture between two struggling teams often prone to cagey, low-scoring encounters. This results in a negative value edge, indicating the odds are slightly inflated.