It seems that there is no --remote flag for lfs migrate import, only export.

It's easy enough to workaround by renaming the original origin:

git remote rename origin oldorigin
git remote add git@gitlab.com:group/project.git
git lfs migrate import --everything --include="*.whatever"

However, would still be nice to specify the remote in the import command.
Does this a) already exist and simply isn't documented, or b) not make sense as a feature due to my not fully understanding how import works?