There are an easy dozen stories that are almost impossible to explain away.
How does an interpreter, making $200k/year, get a multi-million $$$ line of credit.
How does an interpreter manage to swindle banks out of $16M+++?
How does Bowers get a one-year jail sentence for taking maybe $100M worth of bets?
Ippie tells Ohtani's accountants/financial team that they aren't allowed to examine an account with $16M+ in it, and no one thinks to ask Ohtani to confirm it?
The scam goes on for maybe 26 months, and in all that time, Ohtani does not look at one single bank statement?
All this is impossible in the real world.