It’s not really a matter of dispute.
The person described is a talmud of R. Yehoshua ben Perachia. RYBP lived about two hundred years (give or take a decade or two) before Pontius Pilate. If it is to be assumed that the authors of the Christian Bible got that detail right (and it’s hard to imagine that when the Gospels were written they made an error of three centuries only a single century after the events described).
Likewise, the number of disciples doesn’t match the Gospel story, nor the method of execution nor any of the other major details of the story.
If so, then you’re left with several possibilities:
1. The Christian Bible is utterly wrong about Pontius Pilate, the crucifixion, the apostles, Herod and almost everything else (we’re talking historically, not theologically, of course) in the details of the story. I find this to be highly unlikely. While certainly some of the details may be wrong, I find it hard to believe that so many historical errors could happen.
2. The identification as a student of RYBP is wrong and he was really the talmid of a later tanna. Possible, but for the sake of argument, let’s assume it’s not.
3. The Christian censors assumed the person mentioned in the Gemara is the subject of the Christian Bible and censored the Talmud without any serious investigation. As the years went on, we applied the identification of this person to the subject of the Christian Bible. (That’s my personal take on the matter.)
The Wolf