I am not making the common error of imputing to the word perfect a modern English definition. Perfect in this case refers to the completeness of the word of God not the Godly nature of the word. A good portion of the word of God had not yet been given when these verses were written.
To argue with you is quite pointless. We are certainly in the time when men will not endure sound doctrine but will heap to themselves teachers having itching ears. You cannot admit error you refuse to see.
The thing is, you cannot prove your idea here. You can read it into the text and condemn someone who disagrees with you with unrighteous judgment.
Is there any hint in I Corinthians that Paul discusses a completed canon of scripture? No. Does this assumption fit the context? No.
I Corinthians 13
10 But when that which is perfect is come, then that which is in part shall be done away.
11 When I was a child, I spake as a child, I understood as a child, I thought as a child: but when I became a man, I put away childish things.
12 For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known.
Paul compares his speech, thought, and understanding before the perfect came to that of a child, whereas that afterward would be as an adults.
Did Paul's speech, thought, and understanding change into that of an adult's when Revelation was written? No. He was asleep in Christ. Paul makes the passage personally about him. He will, however, experience the resurrection.
Suppose you want to 'stretch' this passage. Can you say that the speech, thought, and understanding of believers who lived after Revelation was so advanced compared to 1st century Paul's that his seemed like that of a child?
Not only does that position put the reader in a superior position to the apostles who wrote scripture, but it also is not true. Many of us read Paul's writings as believers, and years later gain a deeper understanding of them as we continue to read. The light bulb goes off and we get a new insight that Paul clearly had before us...an area where he was more 'perfect' than we were in our understanding.
It also does not make sense that if a group of kindergarteners write a book for infants, and if the infants gain a copy of the book or read it all, that they will suddenly grow up in their understanding to be like adults. Making yourself out to be an adult in understanding and the apostles to be children is not a good way too look at the scriptures, either.
Ephesians 3:4
Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
The New Testament is written so that we might attain to the level of the understanding the apostles had of the mystery of Christ. There is no guarantee in it that we will make their understanding like that of a child's in comparison by reading the scriptures.
I Corinthians 1
4 I thank my God always on your behalf, for the grace of God which is given you by Jesus Christ;
5 That in every thing ye are enriched by him, in all utterance, and in all knowledge;
6 Even as the testimony of Christ was confirmed in you:
7 So that ye come behind in no gift; waiting for the coming of our Lord Jesus Christ:
8 Who shall also confirm you unto the end, that ye may be blameless in the day of our Lord Jesus Christ.
Here, as Paul starts out a letter in which he will address a number of themes, he hints at some of the topics he will address in chapters 12 through 15. Chapter 12 teaches on spiritual gifts, while chapters 13 through 14 and especially 14 focus on tongues and prophesying-- utterance gifts. Notice all utterance and all knowledge and compare to knowledge, tongues, and prophecy in chapter 13.
Chapter 15 teaches about the resurrection of the dead at the return of the Lord Jesus (at his coming.) Paul also refers to the 'end' in chapter 15 when he writes 'and then cometh the end'-- a grammatically inflected form of the same Greek word used here in 1:8 (Strongs G5056.)
Here in chapter 1, we see writes of the Corinthian church and believers everywhere coming behind in no spiritual gift waiting for the coming of our Lord Jesus Christ. This is the 'lens' or 'exegetical key' we should use to interpret chapter 13. We should not read in some later theory or concept that is not even hinted at in the whole book, as those who argue that he is writing about the completed canon do.