Jesus was speaking to His twelve disciples when He made this statement - ... you who have followed Me will also sit on twelve thrones, judging the twelve tribes of Israel.
Matthew 19:28
Just like He was speaking to his twelve disciples when He said - These twelve Jesus sent out and commanded them, saying: “Do not go into the way of the Gentiles, and do not enter a city of the Samaritans. 6 But go rather to the lost sheep of the house of Israel. 7 And as you go, preach, saying, ‘The kingdom of heaven is at hand.’8 Heal the sick, cleanse the lepers, raise the dead, cast out demons. Freely you have received, freely give.
Matthew 10:5-8
Did Matthias go out to preach the Gospel, with the others when Jesus said this?
Your theory about who Jesus was speaking to is ridulous, and your method of interpretation is irresponsible.
Deciding to insert some else's name into scripture when Jesus was speaking directly to the twelve, is how heresy is conceived.
Judas was a disciple, and a trusted friend who BECAME a traitor.
Judas
the son of James, and Judas Iscariot who also became a traitor. Luke 6:16
Just as Saul was a persecutor and BECAME an apostle of the Lord.
JLB