Fair enough, and personally I agree with you that this is realistic, but there is still this '80% research' being touted as the ideal, and likely the expectation of those listing their career goals as 'full-time research scientist.'
I mean yeah, I would assume the majority of these people are not on the tenure track. I'm on the clinical track and I currently have 40% research time (it bounces around year to year), and I bet that's not atypical. The institution I was at when I transitioned from fellow to faculty had a minimum requirement of 50% funded research time to enter the tenure track.