You gotta remind me what happened in the show. Why did it appear to be intended to be vetoed by Antony?

In the event, Antony and Quintus Cassius (not the assassin) did veto the SCU (senatus consultum ultimum is the technical term for that motion). The Pompeians threatened them with violence, which was a violation of their position as tribunes of the plebs, and they fled to Caesar.

It's possible to read this chain of events as intentional. The expulsion of the tribunes was one of the reasons Caesar cited for marching on Rome - it was an attack not on Caesar but on the privileges of the Plebs. Some people have argued Caesar was trying to get that sort of thing as a casus belli. Likewise you might argue that the Pompeians proposed the SCU knowing Antony would veto, and drive Caesar to open war.

I don't think it's possible to think the proposer wanted Antony to veto and kill the issue, because of the following threat of violence.

If you remind me what happened in the show I might be able to say something addressing it more directly.

EDIT: The removed comment described the plot in Rome, in which Pompey and Antony arranged to propose an SCU, pass it as a show of political unity, and have Antony veto it, so the Pompeians could demonstrate resolve against Caesar while not pushing him to open rebellion, or exactly how I think it's impossible to read the situation.