You cut out the part where they literally told Qui Gon to investigate it further and that they’re going to help, does that count as “pondering the possibility?”
With no real assistance or back up. I think it’s a bit more generous read of them, to me, that they simply refused to accept the notion but wanted to find out anyway just in case. But like I said, being arrogant, for me, doesn’t mean they’d be entirely bullheaded or overly pompous.