Probably the key part:
“[W]e face the real prospect of losing important Test and BBL cricket matches from Queensland to interstate venues during the pre-Olympic displacement from the Gabba and hold a reasonable fear that a suitable solution to enable continuity of matches in Brisbane may not meet our needs or expectations,” they wrote.
“…We are preparing ourselves for a worst-case scenario where cricket could face the loss of access to the Gabba for potentially greater than seven years during the period of demolition, construction and post-Games return.”
Hence their public demands for an Allan Border Field redevelopment before the bulldozers move in at Woolloongabba. It would be, they argue, the “most efficient, cost-effective, and timely option” for the sport.