[evnsio]

I don't disagree with your points, and having worked at both massive IT organisations, tiny startups and scale-ups in-between, it's clear that different organisations need different levels of rigour and process!

I see the guide less as a set of dogmatic rules to follow, and more of: a) a set of sensible defaults for small to medium size orgs who are starting with little-to-no process and b) a source of inspiration for larger folks who maybe want to bring their processes out of the ITIL ages and into a world that's a little more applicable to the way folks work today.

As you say, the extremes of the ITIL <---> Agile spectrum is likely to be a mess, and where you should target on that spectrum is highly dependent on your starting point, your culture, and your appetite for change :)