As far as I know, all feature requests will have to go through the Innovation Zone, and TAC will ask you to let the partner or Aruba local SE add those requests. The product management teams will review the requests in the Innovation zone on a regular basis and requests that have more ask or more impact are more likely to get priority.
If your request during the TAC case is considered a bug, which is the case if the actual behavior is not according to the documentation or design, then TAC will create a bug which in general is placed in front of enhancement requests.
Your local Aruba SE can always assist or advise on how to get the best visibility and priority for changes in the Aruba products.