His comments are valid to a point (south of Cabulture), but the Duplication and realignment is still needed until at least Landsborough to enable the Sunny coast line to be bult. But ultimately it needs to go to Nambour with further realignment all the way to Gympie.
When it will happen?
If the Independent member for the seat of Nicklin, Peter Wellington, wins the balance of power in the new government (and it looks odds on he will) then this is probably the best chance the entire duplication process has had. The southern border for Nicklin begins at Eudlo and the northern edge is at Yandina, taking in almost the entire Landsborough-Nambour corridor. I'm sure he will make completing the duplication/increased passenger services a part of his agreement to support the government. Likewise the Inlander is on much firmer ground if the Katter Australia members join the minority government (this passenger train runs almost entirely through both of their seats). At the moment minority government could be good for regional rail funding over the next three years.