Pretty good tutorial, but there's one last step you can do if you wanted and that is converting it to a packfile using hkxcmd since tag files are portable and not optimised for any one platform although as mentioned before the major one is it being in an XML format not a good idea to release any animation like that (by all means use xml if you want while creating, modifying, and prototyping a mod, just make sure they are binary at the very least before you go releasing anything).
As a sort of step it's pretty much these two commands in command prompt:
hktcnv.exe <Source File> <Destination File> hkxcmd.exe convert -v:WIN32 <Converted File> < Final Destination File>
and you're done! All compressed, and optimized. Pretty easy really, could batch it too if you wanted.
As a sorta idea on what you are saving by doing this: A single 171 frame animation I was working on went from a 400KB xml tag file to a 80KB Binary PackFile, that's 320KB of memory saved when it's loading the animation that can be used elsewhere.
So Binarify your files, my fellow animators