Stevie was fun to watch and because of his ability to connect with the fans it wasn't hard to have affinity for him.
Stevie lacked enough speed to overcome his inability to run great routes. He overcame the lack of physical talent and route running by just relentlessly competing. Stevie is the type of receiver that needs the QB to keep looking his way and give him time to figure out a way to get open vs just being able to get past the DB or burning him by running a great route. The help this team needs can't give Stevie that type of attention and time. For these reasons he wouldn't be a receiver that would have helped this team since drafting Watkins.
This team needs a WR to take advantage of the attention Sammy gets, run perfect routes/read the defense and have good hands to keep making the defense pay for devoting too much to Watkins. Then when the defense relaxes on Watkins because he's effective - let Sammy burn them. That's not Stevie!
You underestimate our 23 year old star receiver.