Allow more hierarchy level in Pro License version for Knowledgebase/Solution

In Enterprise Licensing one has the flexibility to have folder hierarchy upto 5 to 6 levels. However at the Pro Licensing version we just have the Flexibility to have folder hiearchy upto 3 levels only.

For example :- Category → Folder → Articles.

This is very trivial ask as far as setting up knowledge base solution system for any company. This seems very limiting for Pro License type.

Either this criteria should not be govern by the License type or allow more levels for Pro License.