Un-roasted peas or other legumes are bad for chickens. The fact that more of the "yellow" peas are now cracked may be a step in the right direction but my feelings are that this is a substitution of a good ingredient, namely GMO soybean meal for an inferior ingredient, namely whole "yellow" peas what ever that means. You can't force my chickens to eat raw peas of any kind if you held a gun on them.
That's interesting. Mine gobble up raw frozen green peas. Dried or undercooked BEANS are not good for them, but I haven't seen any evidence why peas are bad.