If a CFI could not log PIC, what's the point of being a CFI?? I don't think there would be any! That's the traditional path of building time, get you CFI and instruct.
What is the point of being a flight instructor? It's a paying job,and the point is giving meaningful instruction in a professional environment to provide a lifetime foundation to others in aviation.
If you're there to build time, do yourself and the world a favor and get out. We need more time building buffoons trying to teach like we all need .308 holes in our foreheads.
If you don't ACT as PIC you cannot LOG PIC. You're arguement sounds like you're reading what you want out of the reg's.
I got tired of listening to you sound like you didn't know what you're talking about early in this thread, and let it drop, but here it's clear that you really don't know your subject matter.
Acting as pilot in command is NOT the same as logging pilot in command time. The FAA has made that VERY clear, time and time again. How can you not understand this?
Of course a flight instructor is entitled to log PIC. Can you not read the regulation? A flight instructor need not be PIC to log the time, but can log it all the same.
Several circumstances exist in which both parties are entitled to log PIC at the same time, but only one pilot may ever act as pic at the same time.
Logging is a paper issue, acting is reality. Logging PIC and acting as PIC are very, very different. You started the thread with a dead, tired, horse (and the wrong one, I might add), and you're still intently whipping it. Let it go.