the answer is..... the infinity. it's not a barrier but a "creation" of space that occurs when something approaches Gojo. Once teleported ,Goku would still have to hit him and Gojo's ability would prevent the hit from reaching the target.
However, once again I have to disagree on a matchup. Gojo's ablities are a counter to pg like Goku, who physically attacking the opponent, Gojo just has to choose which hax to slaughter Goku with. I have seen many such fights lately. These matchups seem to be made to put victories on the PG's profile.
it's okay, that it's almost certain that with these dynamics Gojo would win, but for now I don't see anything that would make this fight a debate, I see it as a quest for approval about Gojo slamming
it is not present on the Op's ping that reports Goku's profile in question. I don't know if you should own it but for matchups you use what the profiles report.