Is the issue with the author's Orange County-based parish, or with Catholic parishes overall? The "validity" of gluten-free communion wafers is an interesting topic in and of itself.
Related threads:
Gluten-free Communion Wafers Not Holy, Says Catholic Diocese in Ohio
Catholics with celiac disease can now take the host at communion with low-gluten wafer
Monsanto's genetically-modified Eucharist (Catholic / Orthodox Caucus)
Breaded bliss [one company makes 80% of all Catholic Eucharist wafers sold worldwide]
No Genetically Modified Jesus! (Important Issu!) [Catholic Caucus]
I live in Minnesota and my wife's been getting gluten-free wafers for YEARS.