I think you’ll find the majority of the work being done on Audition in an on air studio is quick edits of interviews and the like. A couple of guys might use it for jingles and stuff, but that would be the exception not the rule.
When you consider we used to be able to own a copy of Audition for $500 per studio, and we now have to pay in some locations several thousand dollars a year for the same product, I’d say it’s more a cash grab from Adobe rather than broadcasters trying to cut costs.