Communications Alliance argues that fixed wireless performs so differently to fixed line services that the two can’t be measured in the same way.
NBN Co has been under pressure over the past year to fix congestion issues on its fixed wireless network, issues that users say has seen them achieve a fraction of anticipated speeds.
NBN Co will ultimately stop selling speed-tiered fixed wireless services and instead offer a “best effort” service.
So; “Crap, it might be, but it’s the best we can (be bothered to) do. Suck it up!” 
If this is anything to go by, then 2 Mb/s is acceptable on any speed tier.
