Jesus prayed ONLY for Beleivers. We should never ask the Lord to do something He cannot do. -> The Lord cannot save an unbeliever. -> He cannot heal an unbeliever.
In this passage Jesus prays by faith for those who WILL believe. He did not name names. Neither should we.
The HolySpirit reacts to a person`s response to the Gospel which we share to deliver, to heal, to save or to condemn. Yes, the HolySpirit condemns a person who rejects the Gospel of Jesus Christ. He does so by no longer drawing them to the Truth which they have willfully and knowingly rejected.
The UnpardonableSin is a lot easier to commit than people think. Jesus instructed His disciples to shake the dust off their feet as a testimony AGAINST those who rejected the Gospel of the kingdom. Mat 10:14