Do Kwon once said (that I remember) that he didn't talk to poor people, but apparently he ran away like a rat, rather than face reality and its possible consequences. Aside from that, the way it worked with its stablecoin (UST) was a mistake from the beginning, and also the beginning of the end, especially for the money of many affected investors. What I still don't know, I haven't read it anywhere, is whether those affected will recover their investments.
I don't expect him to be convicted on all charges but he will definitely face fraud and money laundering charges and I expect him to get 30 years or more.
Considering Sam Bankman's sentence, it is very possible that Do Kwon's sentence will be what you say or even a little higher. Although there is a difference in the charges.