We Boeing pilots don't have to delay reversing for a ground spoilers call because we have a handle that the PNF verifies or pulls so ground spoilers don't go through computer logic. We can reverse at touchdown. It is a nice safety feature.
I agree bubbers 44. Not being able to manually select ground spoilers with Config full is a deal breaker. Using Config 3 on short and slippery runways was to me an unsafe "workaround" due to increased speed and increased tendency to float.
My record: 10,000 + on short and slippery/icy runways in 732, about 1,000 in the 320. Caveat emptor.