I hear ya.  I judge mostly on what I see here and now.  How Siemian in his 2nd year compares to any other QB in their second is so difficult to evaluate since there are far too many variables involved.  Sure, me watching Game Pass doesn't make me the expert, but it's better than the casual fan who watched simply the game on network Sunday.  They sure don't see everything, and the action passes so quickly, it's tough to evaluate more than following the ball.  Not sure if you've tried it...it's pretty cool.   

Also, even the experts make huge mistakes (one's sitting on the bench).  And, they need to work with the best of what they have.  It isn't like there's a Brady or Rodgers available for every team.