Taxonomy control or Content types

Hi,

I am building a site in 5.7. I currently have 2 vocabularies.

Vocabulary 1 uses term one, term two, term three, and no sub-terms

Vocabulary 2 uses term one (same as above) and multiple sub-terms, Term two (same as above) and multiple sub-terms, and so on.

Auto- Path uses vocabulary one, single term... ie. http:/website.com/term-two/article-title.html

Vocabulary two allows for multiple term and subterm selection, plus free tagging. This is great for our content because our content can sometimes span multiple categories, but we just want to highlight one for placement purposes and for the Auto path.

Here is my issue, when a user opens up a node and see the taxonomy terms listed, they see the terms from vocabulary one AND vocabulary two

Though I feel I need both vocabularies for the content organization. However, I only want users to see the terms under Vocabulary two.

Is there a module for this? or am I missing some sort of access control?

I know I can make a content type for each vocabulary one term (and delete that list) and only have vocabulary 2 show up, but this seems like a bulky way (20 plus content types for articles) to take care of this.

Thanks,