just be sure to reactivate your antivirus after using it.
The exploitation of adb is used to get the RATM file on the phone... then RATM uses an exploit in the linux kernel to gain root access. I'm pretty sure RATM isn't using adb to do its magic. What I don't know, is if it is exploiting a part of the kernel that is android specific, or a part that is in every linux kernel
What you wrote makes no sense, the reason the anti-virus detects it as a trojan is because it includes exploit code to obtain root in LINUX. It won't do anything to a windows box but it can completely own a vulnerable linux box. So telling someone they would need to switch to linux in order to avoid this exploit is ridiculous.