Simple "Team Performance Prop" question.

[VarlosZ]

On Pinnacle, are the Team Performance props simply over/unders for the number of points a particular team will score in the game?

I ask because I can't think of another explanation, but for the Monday night game, Pittsburgh Under 30 is +116, and that seems insane. Pittsburgh has scored 30 or more this season one time out of six, while Baltimore has allowed 30 or more also one time out of six.

Thanks.