The only rationale that would sway me is the idea that a year ago this trio of WRs all had exceptional efficiency with Ryan Tannehill throwing the football, and that Kenyan Drake has been a great revelation, and thus you already have the bones of your offense in place and maybe you really should focus on adding the complementary elements that merely allow those stars to dominate games.
I agree with that, as I did in 2016, and it's what I disagreed with so much about their 2017 off season strategy.
But the primary problem I run into is still that I can do that with Will Hernandez just as easily as Quenton Nelson, and be no worse for the wear. I don't know that I see Nelson as a really rare prospect, period.