LIS says the bill was reported from the sub-committee on 1/21/16, with amendments, but there is no updated bill text available. It would be important to see what amendments were made.
Rightly or wrongly, it seems to be the fact that hunting regulations include carry regulations. I suspect that the strategists for this bill believe that keeping that status quo intact improves the chances that the bill will pass.
Just a guess. There are a lot of people who know more about this area than me!