The journalistic model of doing deep work does seems different than the others, but he's not recommending it, just pointing out that there are outliers who can train themselves to reach intense focus states quickly and do deep work in short periods of time. Not sure why this would bother you -- if it doesn't apply to you, ignore it!
I felt like there was a ton of value here. Recommended for all!
For instance the idea of how you deal with short moments of boredom in general (also outside of work) has a lot of influence on how good you are at ignoring distractions during work was an eye opener for me, and goes deeper than "secure big chunks of time to reach and be in the flow state".
I read "So good they can't ignore you" from the same author and was really underwhelmed by it. It came across as repetitive and formulaic (i.e. have some basic principle, then interview interesting people who employ this principle somehow).
But of course you cannot write a full book out of one sentence, so it repeats itself until it achieves to contradict itself by telling you that if you are a writer/journalist you can achieve the state of flow in chunks of 10 minutes spread over the day and happily switch tasks.
So, no, really, you can save yourself this book.