[peatfreak]

"Don't do it because it's hard! And you should listen to us because we have the meta-knowledge and experience (now) to know everything there is to know about this topic, plus the bravery to admit in public that we are only human and we make mistakes."

Isn't this the mantra of all of these types of articles?

OK, yes, it usually makes sense. Especially in the case where you are like these guys and experienced enough in some relevant area to know just how difficult it can be. These are perfectly good reasons from technical, business, and project planning perspectives.

Isn't there a TLDR where they mentioned when it does make sense to build your own TSBD? Presumably in some case where you have a team of serious, high-grade experts who know exactly what they are doing; have requirements that cannot be met by any of the other offerings out there; and where the whole thing has been specced out and deemed reasonable?