I honestly think that Morgan got a fair shake for most of his career, that he was a very good WR, but that he isn't quite HOF worthy.
Maybe he wasn't HOF worthy but I think there is little doubt he would have gotten much more consideration simply by playing on a better team.
Every year, the very good but not quite HOF worthy Art Monk doesn't make the HOF and there is a huge uproar. Morgan got no consideration.
Stanley Morgan had more career TDs, the same amount of seasons in the top 10 in the league in yards, more years of top 10 in TDs, and averaged a ridiculous 5.5 yards more per catch than Monk. Monk who was a possession WR caught a lot more balls and played 2 more years. They averaged virtually idenitcal yards per game.
Why is one a non factor and one a cause championed by fans and media? The Redskins won 3 Super Bowls. That is the only reason. You can agree or disagree that it is a valid reason but there is no doubt it is the reason and that the success of their teams has played the major role in how they are viewed.