Nothing about that game looks like cheating, and I don't just mean the quality of moves, I mean the times and types of moves. If he banned you that's really pathetic.
Ben Finegold can never lose

20.5 % accuracy for a GM is almost unheard of, even in a 5 minute game. Guess he was just embarrassed and lashing out.

You may have cheated.... but... okay, I am not sure now that I thought about it..... but if you ever beat me again... I will cry even more!!!!!

You may have cheated.... but... okay, I am not sure now that I thought about it..... but if you ever beat me again... I will cry even more!!!!!
YAY BEN!! RAWR!

I assume he didn't analyse the game before he made the accusation. If I was a GM and got beaten by a 1600, my first thought would probably be that he is cheating.

It is something like he never let his students go above him. I assume that if op is his subscriber then he must have got coaching from him. Pardon me if I offended someone.

Seriously though, I watch a lot of his games and I have never seen him use that much time in a blitz.

I don't think you cheated. But let me put it this way. In my 45 years of playing chess I have not ONCE been accused of cheating. Not once! I mean come on. I have played a good game before. Nope. I've never played good enough to be called a cheater.
Congrats on the great game and be proud of your badge of honor. It's not every day you get called a cheater. Don't be mad. I wish I could play a game that good. I think Ben will come around and think you didn't cheat after all.
So be proud of your game, don't be mad, and be nice to Ben please.
On Twitch GM Ben Finegold plays subs, unrated 5 minute. As a sub, I played him just now. My mistake was winning - after he played pretty poorly in the opening. Why was it a mistake? Because he then accused me of cheating and banned me from his channel.
Pretty pathetic behavior on his part. OTB my last rating is 1900; I haven't played "seriously" in some time and admittedly my chess.com rating is low (1650). But you can click my name and look up my game (at least I think so, let me know if not) and I find it hard to believe that it would take a master to beat him after the first 10 moves.
It's a shame as he's lost a subscriber and someone who thought he was worth watching. It's also a shame that his ego can't handle a loss even in informal games where he isn't playing well.
But since he is a GM and I am not, he wins in the court of public opinion. But I have never cheated at chess, never will.