It's pretty easy for RH to just dismiss this without doing any research but it's also pretty easy to figure out. Have RH sit down with people who say they were affected, and go through the transaction log. Honestly I wouldn't be surprised if there were a bug that caused unintentional selling like this, because it sounds like RH was acting on the boundaries of their abilities. This was an edge case that their systems weren't designed to handle, and they didn't have a good way to work around it besides shutting off trading.
It's pretty easy for RH to just dismiss this without doing any research but it's also pretty easy to figure out. Have RH sit down with people who say they were affected, and go through the transaction log. Honestly I wouldn't be surprised if there were a bug that caused unintentional selling like this, because it sounds like RH was acting on the boundaries of their abilities. This was an edge case that their systems weren't designed to handle, and they didn't have a good way to work around it besides shutting off trading.