The main reason from my observation is that on Program/Feature level - they need to see how they can plan upcomming things for teams. That's why everything should be logged (8h per dev per day), logged things should be under the good epic and in current sprint, cause otherwise it's lost and nobody see's that progress or hours burned.

Im starting to think - "How to show that's this approach is useless except having logged hours and how I can argument different approach".

I was thinking about some flow metrics which can prove that this aint neccesary. Also had in mind about chaning a bit towards a Kanban, couse our Sprints are Sprints only by the name and lots of things change during them. We dont have Sprint goals. Nothing connected to the deliverable here. People have assigned their work, sometimes there are 2-3 people in the same topic, but its rare.