I'm inclined to agree, but (first names to reduce confusion) Aaron has typically not said something so harsh and so direct about other wide receivers. He defended and wanted Jake Kumerow.
For this level of slight, I read this is as Aaron say, "Amari, you're talented but you're messing up. You're not working hard and if you're not careful, you're going to get cut. I've tried talking to you personally, but you are not listening. Me saying this in public because nothing else is getting through to you. It's not that I'm mad, I'm just disappointed."
Also doesn't bode well for Amari that Watson, a rookie that missed almost all of training camp his rookie year, played the second most snaps of all of our wide receivers. Or that Doubs played only 2 less than Cobb. Or that Winfree got 9 snap.
I have long been hopeful for Amari, but this does not look good for him at all.