I think it had more to do with what the team needed at the time. We were trying to protect and preserve a 40 year old QB with a not all that strong arm. A 1st rd WR wasn't of any use with an old Drew Brees, linemen to keep him upright had more value
I can see that to a degree about the receivers and Drew, but LT has a very premium value placed upon it. It is the one position in the draft where the top ones go very early and most of the top talent is gone by pick 15. It will be the top position picked this year yet again along with edge rusher in the top 10.
With Jameis coming off surgery I would imagine keeping him upright and limiting his hits will be top priority. If Landry or another WR is signed I can definitely see a move up for a tackle. While never a sexy pick, if we find our protector for our QB's blindside for the next decade I could live with it. I just do want to see the WR situation addressed somehow someway and not swept under the rug