Earth's playstyle is very interesting, he spent a good deal of that set just standing in shield and waiting to bait a reaction. There's something viscerally intimidating about it. You can tell he's confident enough in his punish game that he's willing to do absolutely nothing in the middle of a match, just to gauge how his opponent responds. He really takes the spirit of Pit's gameplan and brings it to another level.
I don't think it's something that would work across the board, I'm wondering if it's just something about the Japanese playstyle that western players aren't used to, but I think it's a good example of a player making a character their own. No other Pit plays quite like him, he really is a trendsetter for his character's meta.