Chess commentators make a funny decision in commentary

They use the eval bar which shows which players may have an advantage or disadvantage in a given position.  They use the eval bar in analyzing possible moves.  But they don't use chess engines to show how a computer would play the position and understand WHY the eval bar shows what it shows.  

I think they should pick a side.  

Show us the game as GMs see it, DON'T show the eval bar (if people want to do that on their own that's fine). 

Or 

Go ahead and use stockfish and show what the chess engine clearly knows and is reflected in the eval bar.  

Personally, I think the commentary would be WAY more interesting w/o the eval bar.  Let the GMs debate whether the position is  better or worse without help of the computer.  Show how GMs actually look at the board as players.  Not with the aid of a computer. 

But if they're going to use one, then just use one and show us the optimal play.  

I fully agree, what's the point of having GM's on your video if all they do is make fun of people's blunders because they're obvious or for more complex positions, use the eval bar?