And the B-1B flew more CAS missions over the last 10 years.
Yes, there are places where you can actually do something loosely defined as CAS with JDAMs from a B1. But some simply cannot. There’s no such thing as a gun run near like the ones that have saved lots of men in places where you can’t drop a JDAM. And though defense contractors love it, killing 4 guys with a 60 year old RPK with a precision weapon is a waste of cash.