“On the bottom of his pages is an address: 34 Rue de Lynn / Sedona, AZ. 86336. Using Zillow or any of the other realtor sites, one finds it is 3,049 square feet of empty land.”
You are looking at an old listing before the house was built.
Newer Zillow has home not for sale.
Interestingly, the Form 990 has an oddity: "Robert G Cornuke / 34 Rue de Lynn Sedona AZ 86339 / Colorado Springs, AZ 80918" combined with the address for the IRS: 7086 Bell Drive, Colorado Springs, CO, which is the address of an attorney no longer in practice, not Cornuke.
"Bible Archeology Search and Exploration Foundation is located in Monument, Colorado, and was founded in 5/19/92. At this location, Bible Archeology Search and Exploration Foundation employs approximately 3 people. This business is working in the following industry: Other membership organizations. Annual sales for Bible Archeology Search and Exploration Foundation are around USD 130,000."As to that Sedona address, further examination shows:Source: Bible Archeology Search and Exploration Foundation 18580 Augusta Drive / Monument, Colorado, 80132
May 2020 - Jun 2020 -- Cornuke Robert Gray and Cornuke Teresa Ann -- 1 MonthWhen they owned it for that one month, it was vacant land.Source: 34 & 38 Rue de Lynn Homes.com
Next time you want to offer a correction, please document with some links.