I'd add a #3 to the "explainable with" list: the trend towards relentlessly outsourcing work, often in situations where you get 1/2 the quality on 2x the timeli

I'd add a #3 to the "explainable with" list: the trend towards relentlessly outsourcing work, often in situations where you get 1/2 the quality on 2x the timeline, because it's still cheaper than good engineers and the ostensible relentless time pressure turns out to not exist if offshore workers are cheap enough.