I think you have to factor in that we are a couple of years behind the other teams in terms of our backups - ie Knock On Effect Club, Jersey Flegg etc etc.
Teams know how to handle players being out through Origin period because it's happened for several seasons (Panthers, Broncos, Storm) and because those backup players have been in the Knock On Effect Cup/Hostplus Cup so are up to the challange in terms of match fitness and readiness if not as quite as much in terms of NRL quality, which may or may not come given enough time.
How many of our reserve players over the last couple of seasons got their "readiness" through purely training and maybe the Dolphins picking them on Week 2 and then maybe Week 6 rather than, if the Warriors had been running their reserve teams, regularly?
But it sure feels better feeling a bit miserable and despondant over a Preliminary Final loss over what we normally end up feeling miserable and despondant over, yeah?