I say yes. We know we can extrapolate seasonally accurate stats from 20 minutes of Blue/White CTC action.
So let's see - Last year, Marvin averaged 33.9 min/game, played a total of 1118 minutes, and finished with 96 Dunks, averaging 1 Dunk every 11min/39sec.
Zion had 5 dunks in 20 minutes last night, for an average of 1 every 4 minutes. If Zion averages 33.9 minutes/game x 40 games (we are playing 40 this year, right?), that's 1356 minutes. If he dunks every 4 minutes, he should finish with 339. That sounds about right. Might even be a little higher if he gets carried away in a couple of games.
I am a great lover of pies, so putting my pie where my mouth is (literally, I hope), I am willing to bet any taker that Zion will break Marvin's Dunk record this season, even if he doesn't keep up his current average.
PS. Kedsey, this was one of my favorite threads last year. Thanks! It would be great to see a 2018/2019 version.