“Peter clearly says that scripture teaches it:”
The passage was not directly about Judas. Peter used this passage, with his other knowledge of 12 thrones for 12 Apostles to replace “his office.”
All full now.
In revelation 21, there are 12 foundations, each with the name of an Apostle. All full now.
Peter is fulfilling scripture. The Church is now. Clearly the number of bishops would not be limited to 12 - otherwise Paul would not have discussed the issue as he did.
In revelation 1,2 & 3, there are 7 churches, catholic, we've been told, teaching with the AUTHORITY of an Apostle behind it; ERROR. All gone now.