'not Adani', blaming franking credits, aka delusional.
That's not delusional in the least.
As Bill Clinton said, "it's the economy, stupid."
Franking credits is the sort of thing that hits people in their hip pocket, and that scares people off. Especially working families who need every cent they can get to support their kids, and there are plenty of those in Brisbane.
Plus Adani by itself was pretty much irrelevant south of Rockhampton (Capricornia), and only really affected a few seats (Capricornia/Dawson/Herbert). Even coal mining is not a huge factor south of Flynn.
You're also forgetting that there were winnable seats in WA/TAS/NSW/VIC/SA. Coal mining was not a big factor in those states as a whole, but franking credits definitely would have been. There are plenty of working families in Perth, Adelaide, Melbourne and Sydney.