Pass blocking ability is absolutely a deal breaker for getting in games on passing downs. There have been many super talented athletes who didn't the opportunity to see the field more because they can't block.
We could go through film all day about the importance of pass protection for RBs.....here is an
Excellent Rico Dowdle pass pro example
That play was the difference in a sack vs a 30 yard gain. Many coaches will tell you that if you can't block you can't play. Not saying that is the future of Jaydon Blue in the NFL, but its certainly an area he needs to improve in, and it could be the reason we don't see him on the field as much as we would like early on.