It is public info that Ryan and Daniel have known each other for several years. Don't think trust was an issue, especially if they knew each other in person, and especially considering that Ryan has enough BTC to not scam for that little.
Ryan was the seller I believe, Devans was the buyer. Which means if Ryan had enough BTC, that doesn't mean Devans wouldn't scam, because it was Devans that bought it. But we all know Devans had the money as well since he bought it, and everything worked perfectly, there is really nothing that went wrong, everything went smoothly, we know that now.
The question is, what happened during that period, how it was done, how much was paid, and seriously, how the hell did Devans took over a place and kept it is cool for this long. MAANY projects end up dying after a while, and the ones that doesn't die end up renovating it as a whole to keep staying relevant or they just die down and be gone. Bustabit reaching to a perfect level and then staying there without ever really having any down is a marvelous thing, I am even sure that in dollar worth it is much bigger now (because btc went up) so it is really a huge achievement. I could literally ready a book about before the transition, during transition and everything after.