If you look at the year when he made that post, it all makes sense actually. BTC value was around $600 back in 2016 which is why his 0.04 BTC is now worth 0.4 BTC at current rates($8500) which is why this is not a typo.
That's not how exchange rate works. 0.04 BTC is still 0.04 BTC.
The TX ID provided by the OP two years ago shows 0.04 BTC:
https://www.blockchain.com/btc/tx/f8ca704cc3c877d8e8bef695414ee8953eeda2a1d9179a0f772499895e55d27dIt was sent to 1dice97EC address, so it's on-chain bet. Unfortunately the bets are not provably fair so it's unclear if it's a winning bet. The chance to win was 49% if i remember well.