I think 'good enough' is just an expression to mean it doesn't need to be perfect or very elaborate. Unfortunately the term scrum these days is far from precise and does not guarantee it'll be lightweight, but the principles I definitely agree with. I've seen all sorts of things, including people over-focusing on the scrum process and nitpicking about all sorts of irrelevant things. I've worked with and without scrum masters in teams as an IC and manager. I think having a scrum master is often unjustified overhead, but having an experienced SM in new teams or teams with an inexperienced manager or lacking in soft-skills, it can help fill the gaps.

And yeah you said it well at the end. There are many other things that I believe are more relevant than the process, but you do need a process teams can follow.