It’s nothing wrong on your part. It’s just that clamping animator clips is not yet implemented, so even if BlendOut is 0, the model animation will fallback to base animation clip and in case there is no base animation clip, then (by default) it fallbacks to the models “rest” pose.
Your change is one step towards doing this, but it will create some (very minor) issues in cases where two clips are crossblended and only when root motion is enabled.
It will need some more changes so handle these minor issues, but until I implement clamping correctly (next version), your changes are fine to keep, yes. 🙂
You might also want to change the 2nd line of code to this:
