You can't really compare the church's audit opinion to that of a US Corp, since, as is noted in its opinion, the Church opines on compliance with "Church approved" policies and practices. Without knowing what these policies and practices are, the opinion is useless. Contrast this with US Corps, whose audit opinion relates to compliance with GAAP, which is "generally accepted", widely known, and easily researched. "Material, materially, and materiality" have very precise definitions and uses in auditing. These terms are rendered useless in the Church's audit opinion since, again, we have no idea what the "Church approved" policies and practices are. Your typical audit opinion is not opaque or indecipherable to any of the millions of financial professionals who understand the use and significance of critical terms. Such a description does apply to an organization that fails to define it's policies and procedures.
Also note that an audit opinion provides useful context for the financial statements and footnote disclosures presented, and to which the opinion applies. Again, not the case with the church's opinion, since it doesn't trust the audience hearing the "opinion" with the related financial reporting.