I think part of it is just having such a high standard that it falls apart when you don't reach that standard, if that makes sense.
Three minor premierships in a row is a crazy feat, and come finals everyone wants to have a swing at you. The last two years mind you, the Roosters dropped the first finals game and had to claw their way back, whilst both their prelim opponents had the week off, which is massive.
I can somewhat agree on the leadership thing too, JWH was missed and imo he should be the captain of the side, no co-captain bullsh*t.
Will be very interesting to see how they go next year, but you've gotta be happy with the effort that came in 2015.