I appreciate your concern - I think I'll be ok.
As you point out, the guy had a great race in front of some all-time great milers and a bunch of his friends and fans. I hope it's the beginning of more great things for him.
I've said my piece about celebrating before the line. Since you brought up Solinsky, I will say that he started celebrating his 10000m AR AFTER he crossed the line. But it was a different circumstance since Solinsky was digging for every tenth at the end and just barely dipped under 27.