Because Chorus are then inventing a premium product by hindering a regulated product.
This is quite a poor business practise.
They are delivering a premium product but I fail to see how they're hindering a regulated product when they're offering exactly as the regulated offering requires.
If The Commerce Commission had a brain they would have reviewed the UBA product several years ago and written new requirements that deliver a service that meets the needs of an internet user in 2014, not an internet user in 2004. They fact they haven't has meant they've basically invited Chorus to do exactly what they've done. Everybody saw this coming.
That in itself is a poor system.
Requiring UBA to be reviewed every few years is just a waste of money.
Granted that BUBA requires dimensioning as a result of obsolete constraining technology might be acceptable, but the EUBA product has no constraints in this day and age as Ethernet is significantly faster and is continuing to be developed.
Sure I completely agree that the ComCom hasnt done the best job, but an endless reviewing process is not the answer.
I do not have all the answers, but I firmly believe that creating a product or solution that customers WANT to purchase as opposed to one customers are FORCED to migrate to is the best answer.