The "rattling" in Skyrim/FO is not specific to those engines but seems to happen in all games that use Havok (e.g. all Source based games exhibit the same behavior when something gets stuck in something else).
RAGE/GTA/RDR2 are so insanely buggy games that a game developer probably can learn nothing from them, except how to not do it, and that no matter how broken your games are, you can still earn billions.
RAGE/GTA/RDR2 are so insanely buggy games that a game developer probably can learn nothing from them, except how to not do it, and that no matter how broken your games are, you can still earn billions.