This mod is just a "loose files" animation replacer covering every single vanilla human stagger animation other than the "smallest" ones (which simply do not have an appropriate equivalent in POISE) built by copying and renaming MikeNike's HKX files as necessary. Big thanks goes to Loki as well for fully opening permissions on all her mods after recently deciding to step away from modding.

Q) Does this actually work!?

A) Yes, of course it does (including for example with different poise-related mods that use vanilla animations such as Chocolate Poise) but you MUST have Animation Motion Revolution installed.