You must have missed it but His write up pretty much answered your questions on Arroyo.
“Of all those guys though, I was most impressed by TE Elijah Arroyo. He was fluid in his movements, had little wasted motion, and was very quick getting in and out of his breaks, just looks like a natural receiver out there. He still needs a little more size, but definitely has the look of a player. Arroyo got a few steps on Washington across the middle and made an easy grab in 1-on-1’s, and was a beast over the middle with multiple grabs in 7v7 and 11v11 too.”