From my experience the problem is that Scrum guides say (or used to say, it might have changed) that in order to do Scrum, you need to do it all. So all the certified Scrum Masters learn that they have to do daily stand-ups and all the other meetings, and because they believe their job is to implement Scrum (instead of making the team more productive), they enforce it all.

Every time I worked with certified Scrum Masters I had exactly the same struggles.