In general, urls can be excepted as well. Also, their warnings are reputational by reports. It's really interesting that there are no other such reports except those from Bitdefender on this thread and in forums, of all the antivirals out there, as well as Windows Defender. Don't you find that strange?
Incidentally, you should be talking with Bitdefender Support, or their forums to seek solutions to questions like this.
Their software's performance is hardly Stardock's responsibility, in any case.
You can also do a multiviral scan via web based services and see how many antivirals find a trojan there.