Why do the product photos for camera bags so often leave off lens caps? Do they think I won't believe those are lenses in there if they protect that glass?

Photographer, crafter, serial and parallel hobbyist, general enthusiast. The views and opinions expressed here are barely even mine, let alone anyone else's. Living on the unceded land of the Duwamish people. He/they
Why do the product photos for camera bags so often leave off lens caps? Do they think I won't believe those are lenses in there if they protect that glass?
Just realized the answer to my own question as I was reorganizing my own bag - stock lens caps tend to have manufacturer brands/logos printed big and prominent on them, capless lets you avoid having someone else's branding all over your product photo