[systems]

well this is a critic of this one command, but how is it a critic of data oriented shells?

[ttyprintk]

I'm probably just cranky. Moving files is a universal use-case, i.e. xargs predates Bourne. Maybe PowerShell hasn't arrived at the amount of reliability testing we expect from a data utility. If I saw it being used as such, I would ask for many assertions for both data manipulation and filesystem traversal.

[systems]

for the record

  mv C:/folder 

will only delete if folder is empty