Tokunbo,
I reckon you're dead on the nail. ADA has the advantage of a life after the blades stop but no private medical, no sickness benefit, no insurance and so on. How much is that worth to an ageing workforce with more frequent need of a quick referral ? If you went there on 8/4 you'd make around the same as a guy on 6/6 here.
The pay review has been taken stoically here, it's the CLA that has really p**sed everyone off.
As NEO said we will have to wait and see if anyone feels strongly enough to pull the ripcord. But I doubt there will be many, if any.