This was mentioned a bit in responses in another thread I found here, but not a lot of details.
Just experienced this oddity on the new T4 Lush Exo Borell. Out of habit (from doing higher tier Exo atlases) I used a super innocuous brew but I was getting attacked by every wildstock I passed. So out of curiosity I removed the super Innocuous brew by drinking a health regen brew and the wildstocks stopped attacking.
So as mentioned in the other thread, I think with stealth skills and super innocuous brew at some point you reach a threshold that makes your stealth a negative number or something and causes wildstocks on lower level planets to attack for no reason. I have never experienced this on higher tier planets.
To test the theory I found a wildstock and approached without the brew running and did not get attacked so then I backed up out of range and drank a super innocuous brew then re-approached the same wildstock and it attacked without provocation. I grappeled out of range, removed the innocuous brew buff and then went back to say hi to the same wildstock and it was back to normal, did not attack.
Here is a video of the “test”