The truth is, IMC fears that appreciating/allowing all these addons would open Pandoras Box, opening a path leading to something IMC cant control anymore and with that, leading to more work for the staff.
IMC shows this kind of hesitation a while already in a lot of situations dealing with forces they are not used to. If thats a mob unsatisfied western customers, people giving honest constructive critism, or in this case, 3rd party developers without any ultirior destructive motives. Its a grey area they’re not familar with.
Thats why they’re giving the staff members here only enough room to just be vague enough to not tap any domino piece by saying, addons which are not harmful and bring no unfair opportunities against regular players, are no problem at all - not knowing of the whole dimension of addons currently existing in public or in secret.
Thats a dangerous topic IMC does not want to tackle yet, having so many issues waiting right before the door.
The sometimes unreasonable fear of being hit by a banhammer is by no means a bad thing for IMC at all, you know ;p