If you think a "reasonable" average home crowd to be 12,700 in 2018 and a membership figure of 15,802 in 2018 is "reasonable" and demonstrates a strong NRL club in the middle of league heartland, either you are delusional or the NRL can't be a real national competition. Those numbers are woeful for a club in the biggest Rugby league city in the world.
Interesting you take a swipe at Storm fans for not travelling to away games-- they have to take a plane to get there, Cronulla fans are reluctant to even jump on a train a Allianz Stadium.