Not arguing the point re: silica gel but I'd be curious why the authors of the article came to their conclusions.
Every camera or other pricey bit of electronics sold in the last thirty years or more came packed with it. I can see some concern for the color changing indicator off gassing but have no personal experience.
Drying out the lube? There may be some trace amount of water in it but really? Properly lubricated machines don't rust.