No, I just wouldn't categorize JetBlue as a "Major". It's far from a Major Airline. I think that the Major's should go the other way with scope.
Oh, I must have misinterpreted your post then. To me it reads that you think he should go back to flying his E190, which means jetBlue is a regional or national, not a major (because a major wouldn't fly an aircraft like that). My mistake.