Yes, it isn't exactly noteworthy if a normal satellite re-enters the atmosphere, but there are two main differences between those and the Long March 5 reentry:
- satellites pretty much always use thrusters for a controlled de-orbit burn, you can somewhat control where they're going to land and most of them are directed towards the space graveyard in the south pacific since that spot is a few thousand km away from everything. You absolutely can not control the Long March 5, so no one knows when and where it's going to land (and due to complicated aerodynamics you can't calculate it either)
- satellites and like 98% of everything else that re-enters the atmosphere is significanty lighter than a Long March 5. That thing is the only heavy lift vehicle that's single stage to orbit, meaning that the entire first stage comes crashing down from orbit and not just a small second stage motor.
This thing is a massive 21t hulk of metal that is going to crash somewhere and it's pretty much guaranteed that quite a few massive parts are not going to burn up and land somewhere. So yeah, i'd call it noteworthy.