Well... that aside, 100% was pretty dope.

I'm gonna say that Deku wasn't the real reason that Night Eye saw a different future, but that Eri's rewinding changed things up. And Eri activating her quirk emotionally as every bit as much to do with Lemillion as it did with Deku.

For "causing self damage faster than I can rewind", he really didn't do much consistent damage. It all came in bursts, and I'm just going to have to assume that Deku's flying required a leg-breaking kick every now and again.