Wilkinson was among the conservatives in the Adventists' conservative-modernist controversy that affected most Protestant denominations of the time. Wilkinson was conservative, claiming that Ellen White's writings were inspired (even though she used different Bible versions). For Wilkinson, upholding White and the KJV were two sides of the same coin.
I guess I'd never thought of the SDA's having a fundamentalist/modernist controversy going on at the same time as many other denominations. I found an online
Our Authorized Bible Vindicated, and I see that he launches right into that in chapter 1 -- linking the Revised Version to modernism, then following with an example of articles in 1928 and 1929 about who killed Goliath. So I see what you are saying about the timing.
To those who hold up Wilkinson as an expert, please read his Truth Triumphant, which denies orthodox Trinitarianism and makes St. Patrick into an Adventist who rejects Trinitarianism and holds to a Saturday sabbath, among other things. (Sort of like some folks want to make him into a Baptist.)
I'd say that shows bias and willingness to give in to that bias. I have no thought on his expertise or the lack thereof, but I have noticed some random comments in places that seemed to imply that Wilkinson might not have had a doctorate, or received it from a less than reputable source. According an excerpt posted online, purported to be from the
Seventh-day Adventist Encyclopedia, Wilkinson studied for the ministry at Battle Creek College, received a B.A. degree from the University of Michigan in 1897 (which I was able to confirm on Ancestry.com), and received a doctoral degree from George Washington University in 1908. (A Master's in not mentioned.) Being well-educated and not being an expert in certain fields are not mutually exclusive (I know that's not what you mean, but I am thinking along this line because I have just been researching a bit about the person Wilkinson.)