I largely agree w/ the argument here, but "slow" is going to be self-defeating nomenclature, and is also inaccurate. Business doesn't want slow. So if we're pitching slow, we're setting ourselves up to lose and the speed-hackers are going to win.
Our goal is architectural soundness. I believe the biggest fallacy of our industry is we think the only way to get these is to go "slow". Not true.
What we're really saying is our industry is short on skill sets. With specific skill sets, you can build architecturally sound systems at no extra cost.
If I were to build a house today it would take me much longer than someone else because I don't have the necessary skills. I might hurry in which case the house would be shoddy. Is the shoddiness of the house necessarily because I hurried? No. It's because I didn't acquire the required skill sets first.
The software industry has no such (practical) concept of the skill sets required to build architecturally sound systems. We have a bunch of well-meaning hackers, and as a result shoddy systems that decay into technical liabilities.
Our industry needs to solve this skill set problem. The challenge is that academia has a hard time teaching these skill sets, because they are so removed from the practitioner. And businesses can't teach it b/c it takes years and special experience to actually teach it. So it's not advantageous to a business to teach those skill sets.
So how do we do it? And how do we organize an industry around professionals who know how to build architecturally sound systems and code? This is a very difficult problem for a world that has such high demand for code and such little understanding of what the professional skill set would afford them.