Nobody will get banned for this, certainly hope they fix it tho. Honestly probably get more exposure if you can get rextroy to make a video and get it posted on wowhead than posting it here.
Also post on reddit if you haven’t already. This is honestly the last place they would see it.
put a ticket in and ask to see if you can use it.
pretty sure there are people who knew about this and abused it.
if blizzard tell you theres no problem with it then use it.
Bringing attention to things like this tends to get it fixed pretty soon after. Just like when Bicmex showed that you could make a “trap focus target” macro that landed trap every time back in SL and it was fixed two days later.