France(U21) have a strong squad. There are quite a few France(U21) players playing in European top 5 leagues.
As for Romania(U21), their overall quality also cannot be underestimated.
The AH opening line is only -0.25 for France(U21), so France(U21) fail to earn enough support from the bookies. Besides, Romania(U21) have shown great attacking power in recent 2 games, and they have good records in AH payout lately.
In conclusion, the AH underdogs Romania(U21) are expected to win this match in payout.