The reason the writer probably used that Greek form of Rock, was that the writer is thought to be a greek-speaking Jewish man 70 to 90 years later. Both sides of this debate are missing the point by trying to parse the words so carefully. Jesus loved and tapped Peter. And Jesus did not appoint any ongoing line of succession. Protestants should not try to minimize the meaning of Jesus saying this to Peter. And the RCC needs to stop seeing it as license to see themselves as the seat of all of Christianity, and claiming the current pope is serving directly under Peter with all the authority of Christ. Both corners in the debate are destructive.
So taking the words of divinely inspired Scripture at face value is parsing?
You can’t mean that.