The only reason anyone ever gave Atom any attention at all in mobile is because they came wrapped in a $20... Stop kidding yourself.
....the only conclusion a rational observer could make......certainly now in retrospect.......but even as it was playing out in real time for some with good instincts.
Sofia was all BK's idea way back in 2014 and none of the models involved any new architectures as they involved pairing existing silvermont/airmont cores with intel modems on the same die. I thought the 28nm tsmc one was a complete waste of time as it negated Intel's in-built foundry advantage over fabless competitors but the 14nm airmont Sofia could still be and should be done now as it would be a compelling product at the right price.
Tie that up with a high end modern Medfield like a single core Skylake with smt and intel would have competitive mobile products again but this would require a CEO with a clue and the attention span of an animal higher than a goldfish !