Steve was on NPR 7 years ago talking about the 2A, NRA, and assault weapons.
It seems that when various people in the hunting or shooting space are being attached, using the they don't support the 2A, it's really that they have no opinion or aren't strongly in favor of AR's. Sure, AR's are used for hunting, they are effective and there are benefits to using one in various circumstances, but I think a lot of sportsman and women can relate to Rinella when he said the following about hunting with an AR; "I don't have any desire to do it, because for me, like, culturally, like, my definition of a hunting rifle is fixed on a specific image."
At the end of the day assault weapons are just one gun issue and your opinion either way doesn't dictate if you are pro/anti 2A, hell Jim Zumbo was pro-2A.
Rinella on the NRA:
INSKEEP: You don't own an AR-15, for example.
RINELLA: No, I don't. I've never been interested in them. But at the same time, I'm a member of the National Rifle Association, because I do have concerns that I want to safeguard.
https://www.npr.org/2012/12/24/167949039/gun-ownership-is-a-responsiblity-to-be-proud-of
You can't fight every battle, Rinella and Randy for that matter, have shown that's not the hill they want to die on. Belly-deep, speaking for myself, I bash the the NRA for associating with and extolling people that are clearly pro-public land transfer. In that vein, if because of Chernin or a change in his own beliefs Rinella starting saying how much he loved David Hogg I think people would have every reason to criticism him. Also let's be clear he would need to be praising Hogg's, I think having conversations with people on the other side of the aisle and if Rinella wanted to have Hogg on the show for some venison diplomacy I would be all for that...