Full face grooves

[KenBender]

Looking at full face wedges, but I don’t quite understand why or if they actually will help. Shouldn’t the grooves that have been extended to the toe of full face wedges be angled at a 45 degree angle down to actually work for open face shots? Once the face is opened, aren’t the grooves pointing almost straight up and down not across the golf ball, effectively not imparting spin or possibly putting a lot of side spin ?

maybe someone here can explain how these wedges work. Thanks 

Edited June 13, 2021 by KenBender