My question is why wouldn’t you use them. Every other piece of metal NM goes through needs a bushing of some type, so why are staples any different?
“ shoot low boys their riding shetland ponies”
Price.
Installed properly, a plain old metal staple is just fine.
Price.
Assuming 1000 staples are used to wire an entire house, the costs are:
Uninsulated - $9.46.
Insulated - $30.80.
A difference of $21.34.
The cost of ripping apart and repairing one or more finished walls looking for a short, hundreds of $$$ and much aggravation.
These can be had for about $0.03 each: View attachment 2552728
There are electric impact hammers that deliver a rapid sequence of blows with a very small impactor travel and not requiring a lot of torque applied to the handle. I have never tried them, but they look like they might work well in tight spaces....
...
Revert to manual methods i.e. beat a standard staple in with the side of your lineman pliers.