Nah, this was an actual large strangle trade...Maybe it was a risk reversal.... buy put sell call... or vice versa. You can't know...
Risk reversal is basically a hedge on a directional underlying holding... the trader might be long treasuries and decides to trade this as a hedge...
Again, Bloomberg making up a story about nothing.
JPM bot 20k of it in the pit from 8 to 9 cents, maybe ran the balance for a bit, then sold 65k on block to the client. So it looks like it's a real trade, but that doesn't make it any less weird.