The low hanging fruit thing is 100% correct. Anyone reading papers saw it everywhere, on every dimension. And it's not to say the authors didn't see it either,

The low hanging fruit thing is 100% correct. Anyone reading papers saw it everywhere, on every dimension. And it's not to say the authors didn't see it either, they did - they just had to get something out now. I'd guess folks in semi conductors saw the same things for ages.