It is a weird article. Fowler obviously knows a lot about integration, but since his business is about writing software he tries to discredit "low code tools",

It is a weird article. Fowler obviously knows a lot about integration, but since his business is about writing software he tries to discredit "low code tools", so that more people use his services. I think that those tools are great for exactly the reasons indirectly stated in the article - they take the mind off the implementation and let you focus on bigger picture. I was involved in tons of integration project and they were always 90+% about communication: agreeing on interfaces. The actual implementation is almost always trivial, with tools like TIBCO or MuleSoft you can sometimes do it in 15-30 minutes (for simple flows, the more complex ones can take up to 3 days).