As far as I know, everyone has been educated on the triple bottom line. That is to say: economic, social, environment are the three factors you must consider. I have not read the report but my impression from the comments so far is that they focused on nothing but the economic. The fact that FTTN is dependent on Telstra's copper network automatically means that it'll provide much less social benefit than FTTP. If you manage to live far from the Telstra exchange, you basically get shit speeds, shit reliability, and the pleasure of calling your ISP to change your connection settings if you don't have a Billion router.
And yes, the bias thing is definitely there. Yeah you can't PROVE it but don't be obtuse come on. Reminder: Malcolm Turnbull personally recommended Ziggy Switkowski to be NBN Co's CEO. This is a man who not only has direct connections with Telstra but did so damn poorly that Telstra's share price halved during his reign as CEO.