Canada's offense can definitely work. But you need entirely different personnel.
You need a Renfrow & a Kupp along with a Robinson-like guy (take the top off). Pair that with some light-***, highly skilled technical pass-blocking pushers and a timing QB like Brady/Daniel Jones/Pickett. And then a space-filler at RB who just... will not fumble.
What the Steelers have:
All-Pro caliber RB,
weak & speed-demon interior OL,
midget WR playing incredibly small and somewhat good slot routes/ fantastic intermediate & over-the-middle deep possession threat Pickens/ unproven but tall Clay
and last but not least a 1,2 read, then zip it in under 2 seconds, QB Trubidor.
Total and utter mismatched on play-calling and strategy here.