Nothing wrong with his left hand. There are numerous shots from the same video when he’s in the ring, close up and there is no swelling on his left hand at all.
Fighting ‘no name guys’? Wilder is just taking the piss. Last fights were indeed light and day. Joshua put on an accomplished disciplined performance against a guy in Takam who is in the top 10 of 3 of the 4 federations. Wilder knocked out a guy who hasn’t fought in 2 years and was so unfit it was criminal, and a farce just like the vast majority of his opponents. One top 10 fighter in 9 years Deontay. You’re not fooling anyone who has a brain.