That's a pretty significant increase tbh.
Because when people drop stats they ignore all context. It's fine in a "play" based game, like your American Football, but in real football, they're useless without context.
They are huge in ice hockey though and save percentage is a very important stat for goalies. I do understand that in ice hockey there are a lot more shots per game and more games per season but I don't think save percentage should be completely written off as bullshit if the sample size is big enough (like at least a full season) in football either. That said, I have no idea what is a 'good' save percentage in football but I can see stats like that becoming more relevant in the future in football too.