Yeah, I have 2076 too. Now after the update of Xprotect you get the message, but what if you ran the app for example on Friday (4th) and got infected then?
Checked on IRC, it seems that sparkles prevented infection for those who updated their app, like I did. Screw all this, as I read in one of the comments here, I will run transmission through Docker container on RPi running FreeBSD.