If only you guys stopped bickering and did something constructive with your time you wouldn't even need to be having this discussion. I'm a rope-access kook thats defied all odds by being IRATA qualified AND able to climb(only just) whilst making informed decisions(even more far fetched statement). Hard to believe i know.
If you do 'go down the IRATA path' with an understanding of both worlds, i think it might be possible to write a formal "Fixed Anchor Guidelines". Heck I reckon you could even talk to Parks Engineers to get this document recognised, helping show that there is some crude standard folks are working to. With that you could change the vibe from an "us and them" mentality to them engaging with the community. You could use that when talking to land-owners when wanting to equip routes on private land!!
Oh if only, there must be something in the water down in Tas as that's obviously impossible. We should go back to schoolyard bickering as thats the best use of our time when it comes to these issues.
If you can't understand why Parks don't want climbers on the arch but are fine with Shipley, well i guess you should let the grown ups try and handle the situation.