Believing something doesn't make it accurate. It throws off your entire premise because there's nothing that confirms multiple players are unhappy. In fact, the complete oppposite keeps happening with multiple players coming out in defense of DA, and the crowd that has a disdain for Allen disregards this as political answers.
Lattimore lost 1 year under Payton, but I guess it only counts because he's lost two under DA.
Occam's Razor suggest that maybe, just maybe...the players are being honest about DA because that's what they are presenting. Everything doesn't have to be smoke and mirrors.