The biggest challenge is likely to be obtaining TGA approval to sell CBD products. It's not cheap to run clinical trials and I can't find any info to indicate that the owner of the Finola strain has/is undertaking any trials.
APH might wait for the food side of the business to become profitable in order to fund clinical trials for CBD from Finola. It would be a no brainer to get into the CBD market if they can considering the plants are already being grown.