Let's see, Spygate... They filmed from the wrong spots. That was the issue. Not that they were filming, but where they filmed from. Oh, and Bill Cowher admitted a lot of other teams did it too. Even Eric Mangini who started the whole investigation regrets it.
Deflategate didn't happen during the Super Bowl. It was the game before. In a game they won 43-22 mostly running the ball and scoring rushing TDs, so an under-inflated ball basically meant nothing. Not to mention the under-inflation measured could easily be explained by high school level science. Also, Aaron Rodgers came out and admitted to having his balls over-inflated. No one cared about that though. Deflategate was the biggest crock the NFL has ever put out. Even independent organizations have come out to blast how flawed the Wells report was.
The TB-KC SB was a blowout. Had the refs called a few less penalties, the result would not have changed measurably. The biggest difference in that game was KC having a patchwork O-Line and Mahomes having to run for his life on almost every snap. Also his receivers couldn't catch a ball.