The options are returned as an array, we cannot choose to return just one value. Also when writing any changes, the entire array must be sent. When sending the array, it overwrites the existing array with the one being sent.
I see, that's a bummer because our Infoblox will be accessed by a lot of users across our company, so we don't want people to accidentally or intentionally change EA values. But thank you for taking a time to answer my question.