Why do people think that Swain doesn't limp anymore?

You can clearly see they way he walks that he limmps and he even has a different boot in his right leg. He might not need the cane anymore but he sure isn't running around. This was even confirmed in his Champion Insights: In Swain’s updated backstory, he lost an arm and had an injured leg, but when he made a deal with a demon, his body was restored. (...) Also, Swain wears a leg brace—which is a nod to his old design—and word on the battlefield is that he rather enjoys dancing with a cane."

Source:https://nexus.leagueoflegends.com/en-us/2018/01/champ-insights-swain/