You made a good observation at least mid season (PSU) maybe earlier, might have missed it, and this is a good take. But do wonder what rubbed his teammates the wrong way...just his inefficiency...which then became a snowball / downward spiral.I made references to it.
You can downplay it, but I am certain it contributed to his shooting and overall play.
Strange for guys to have a such a problem with a personality that seems so likable to some of us.