Every detail of published information makes it easier for an analyst team to identify the jurors. You can confidently bet that Antifa supporters have been working on this without ceasing. That particular bit of information, combined with the public records of the voir dire proceedings may be enough to positively identify another juror.
Of course, if they have a sympathetic person in the court who will leak the information to them, then it is already game over. And the media can take the blame - or credit as they choose.
I would bet that the jurors already understand that they will be targets if they render something other than a "guilty" verdict. The Judge should have already called a mis-trial and moved this case out of Hennepin County.
This thing’s likely to be appealed because Mad Maxine ran her violent mouth, so if Mr. Chauvin is wrongly convicted, it is likely to be overturned.