I read the WPA rules yesterday and the way I understood them the option to give it back to the other player occurs only when a called ball is pocketed illegally or another ball goes in. A simple miss or foul with no balls going down results in the incoming player taking the table as is with no option to turn it back to the other player (I'm referring to section 9.8 "Continuing play"). This would still present opportunities to play a 2-way shot (shot/safety) so long as no ball is pocketed.
I thought at the SBE this was not the case. The incoming player could give it back on a simple miss or foul.
Your right they played you could pass it back on a simple miss no foul. Not the wpa rules more like the bca 10 ball rules.