Don't mind me, just gonna put my elbow here for a minute

[olyfan63]

To me it looks like he was just trying to maintain leverage while the pile untangles. Maybe a bit extra but look how he ends up putting his other hand down for balance.

This. Frank just used the situation to share a few extra moments of love with the Vikes ball carrier.
Frank's just saying hello and expressing how nice it is that he's in position to drop in for a visit, returning the favor to their side.
Doubt there was any actual throat involved, more like facemask and upper shoulder pads. If throat I'd expect to have seen some animated behavior from the guy on the bottom.