This is all true. No one should dogmatically follow Scrum or any other framework. But the trouble is there's two kinds of people who deviate from it. Those who actually know what they're doing and can move beyond it, and those who are scared of or threatened by a new normal and want to kneecap it.
If an aspect of Scrum is inhibiting flow . . . junk it. But also first make sure that it actually IS inhibiting you, and it's not just highlighting a weakness or cultural flaw in your organization that you'd rather not deal with and pretend doesn't exist. Step 1 in moving beyond Scrum is to acknowledge the elephants in the room, feed them a peanut, and decide how to efficiently house them somewhere else.
If an aspect of Scrum is inhibiting flow . . . junk it. But also first make sure that it actually IS inhibiting you, and it's not just highlighting a weakness or cultural flaw in your organization that you'd rather not deal with and pretend doesn't exist. Step 1 in moving beyond Scrum is to acknowledge the elephants in the room, feed them a peanut, and decide how to efficiently house them somewhere else.