If anything, this is a perfect scene of why, as a GM, one should get a feel for their group. There are people who have been on Rollplay, who would have probably just been like "You know what? I'm going to bed." after that happened. Dan rolled with it, really quite well. Like, I was expecting at least a "Goddammit Adam" and instead he just RPed straight through it, so props to @DansGaming for that.
But yeah, would this have gone as well in any other situation? It depends on the GM and it depends on the player, and it even depends on the group. Ruty from Maze Arcana had Milynn's character on Fury's Reach eat a dead Grung baby as a side effect of that one fruit, and it ended up hitting Twitter, after the show, when Milynn came out and was like "I did not like this, it was not okay." Of course, there is somewhere the group came together and Ruty was like "I made the mistake of thinking this would just be consequence, and I didn't realize what it would do." But that is also an instance where the group did the right thing, and came together, to get over it.
But that is still the point. When a GM, or even a player!, does anything that is out of the norm, it can go really good, or it can go really bad. And when it goes bad, the group needs to work towards recovering from it, and admitting mistakes were made, or the group will die. Anyone who watched Adam's Office Hours from the 23rd, has an idea of what I'm talking about, and I'm not sharing details of the situation because I don't think they are mine to share, but there you go. You know what to watch.
But all in all, what's happening in this thread is like what Adam said, there are people who are saying they wouldn't do this, or they wouldn't like this happening to them as a player, and that's fine. Me, personally, this my kind of ironic sense of humor that a player who has been Greed Incarnate, would end up with an item that ate all of his current buildup of wealth. That is right up my alley. And if the execution was just this good, I'd love it even more. As a player. I honestly have no idea if I would ever do this as a GM. I'd have to be really comfortable with the person, heck, I'd have to be really comfortable with the whole group, before I thought about it.
Here, it is obviously a joke that worked well and was well-received by the party. And honestly, that's what matters.