Yep, and for the record I had thought that an additional three Hobarts (or updated version thereof) would have been the pragmatic option, but was proven wrong.
In disecting this decision, there is information that we are not privy to, however I would be very suprised if this option was not thoroughly evaluated. For reasons that have not been announced it was found wanting.
I suspect that at the heart was a view that time is available to construct an optimised fleet, rather than a rushed fleet. This goes to the various discussions on the potential timeframes for hot conflict.
If then looking at an optimised fleet, then I think crew sizing and individual platform cost would have been more important considerations. This pertains to the strategy of a larger number of smaller platforms (the distributed be everywhere approach). Unfortunately additional Hobarts doesn't align with this strategy.
My own personal view is that Hobarts don't offer enough firepower (magazine size) to outweigh their shortfalls, and therefore on balance, don't fit the long term future. The existing three are fine, primarily as we have them, and they will get some upgrades to ensure they continue to be capable and useful. They will be replaced by something else in the early 40s that does align more with the strategy.
Had we gone with more Hobarts, then it is likely the GP frigate program would have been limited to say less than six hulls, or possibly reduced to a corvette design. I doubt there was ever the potential to have additional Hobarts and the full GP compliment, so it was always a choice.
We can now hope that a really good GP platform is selected (fingers crossed). We should know more later this year.
To change topic, but also relevant, the other point I took out of the defence strategy, was the formal intention to assess the viability of fitting Tomahawk to the Hunters. I can't see how this system would be viable with a 32 cell VLS without seriously compromising other requirements. Maybe this indicates that an expanded magazine may still be on the cards for the Hunters. Hobarts have 48 VLS and the view of Defence is this is evidently sufficient, so I will tempt my crystal ball (which has failed me miserably in the past) with another forecast for a moderate VLS increase to be announced for the Hunters. It will be interesting to see the results of this study.