“I would just as soon stick with matza.”
One can always eat certified gluten free oat matzah.
“No reason why a bread made from tapioca or coconut flour couldn’t be marketed to the public for Pesah.”
At least two companies already do. Manishewitz and Yehuda both market for Pesach and all Year certified gluten free “matza style squares” whose bracha is shehakol.