Lets start off by saying Raiders are idiots. Ruggs was the 3rd or 4th best WR for Alabama. Raiders always go for the speed. Pretty much everyone was surprised Raiders took Ruggs as the first WR.
People had Jeudy or Lamb as
#1 - most had Lamb but you could make a case for either being the top WR. If you just look around at sites player rankings you will Lamb usually
#1 and Jeudy
#2
Lets just be thankful Raiders picked Ruggs - Its not uncommon for them to mess up their draft. They took Damon Arnette with their other 1st round pick and he was considered a late 2nd round pick or maybe 3rd round. Several corners drafted after him were considered better than Damon Arnette including Diggs who Dallas took in the 2nd.