Plenty of desperate teams too. I like to compare to the sides we will be competing with. Roosters are a good example with Sam Walker in and out of the side needed more footy against adults.
Those guys you mentioned are likely in that same boat
Tago for example hasn't even played a full NRL game. Yet is going to play 30 full games straight at an elite level?
I can't see it
The guys you have mentioned are particularly small rookies. Cherry picking a couple of guys doesnt prove much imo. Staines got through 20 games and walker palyed 21 so they dont really back up the point you are trying to make in any case.