As with all things, common sense must be used. I think the controversy started when TC found out that some people, would leave the screw until it was almost impossible to remove, and in the process, they stripped the head off, trying to get it out. Then they would send it back to TC, under a warranty claim. In order to stop, this nonsense, TC drilled the channel from the other side, and plugged it.
Think about this, If you let a nipple set a little to long after firing, you can get a good grip on it. However the plug requires a tiny screw driver or allen wrench, which can lead to trouble.
If you use anti-seize or other lubricant and are diligent in your cleaning process, you can remove the screw, with minimal risk, of messing up the head of the screw.
I think TC, came to the conclusion that, removing the screw, was too risky and unnecessary.
The same company that earlier said take the screw out, later changed the rifle to eliminate it.
I came to the conclusion (based on my experience as a machinist) to leave it alone.