I also don't know that anyone in a 12 team league should care who wins this race. JAX is one of the worst two teams in the NFL and has a rookie QB.
Last year Blackmon and Shorts had plenty of garbage time receptions and both were very solid, top 20-30 type WR producers. I wouldn't argue that Jacksonville is much worse this year than they were last. If Shorts gets healthy and back to form or Robinson breaks out (or one of the other receivers steps up), I don't see why they wouldn't produce similar numbers to last year. They're going to be facing lots of fourth quarter and second half prevent defenses and that's good for chunks of yards and very PPR friendly.
I'd rather have whichever Jags WR becomes the #1 target over a low WR 3 like Greg Jennings, for example.