I see potential for factory-built prefabricated building units, where climate and process could be optimized. Why make bricks, when you could make one-piece wall segments and erect them quickly.
If the climate on a building site is correct, one could build a form for say a dome or other shape and grow the whole structure as one complete object!
There's no mention of the time it takes for the process...
I can also see the potential for combining "living bricks" and "fungal insulation" into a SIP (structural insulated panel) where the brick would grow in a form/mold, and then become the form/mold for the fungus to grow and fill in and attach two "living brick" faces, or maybe get a
wood or plaster interior face.