Prepare for disappointment.
Benson hasn't been appearing on the scoresheet lately, true. He's making a positive contribution almost every shift, however, turning pucks over, going hard on the forecheck, winning board battles with smart positioning and a quick stick, making creative passes, being the first forward on the backcheck, and in general being an annoying honey badger all over the ice.
He's fitting in well despite not scoring. He is in no way struggling, except for having zero puck luck recently. His center, Dylan Cozens, isn't scoring either, with only 2A in his last 6 games, which hasn't helped Benson's production.
Benson and the Sabres left today for a tough 3-game road trip, visiting Colorado, Las Vegas, and Arizona. This would have been an ideal, last-minute moment for Sabres' management to loan him to TC, but it didn't.
I'd very generously rate the chances of him appearing in the WJC at 5%.