It's coming, just give it another 3-5 years with a mass wave of retirements coming. The new school of thought is call-optional, 7-3 or 7-5 jobs, with huge incentives for taking calls that amount to vacation time, money, or more schedule flexibility with days off. That's what I see in academics, and the delta of pay for academics and private/hospital is shrinking when accounting for total hours worked and call hours especially.
More people flocking to academic centers too than ever to not have to deal with private group conflicts. Never have to worry about ditching CRNAs or other docs in academics. There's mechanisms and financial cushions to oust low performers for the most part in these places. In private, the driving force is get the cases done no matter what. For what they do relating to personnel decisions, academic chiefs probably don't get paid enough.