Honestly it had never occurred to me to use images on the title page, so I guess I learned something interesting and important
I think the potential "missed opportunity" here is the ability to float images on larger displays. Frankly, a lot of the reading systems are software-based and found on larger nonnative operating systems (kobo and Kindle app on android, & kindle and google play books on ios, etc).
It may seem easy just to say write a query for each device (Sanders Kleinfeld refers to this as the
Heinz 57 method of ebook formatting), but this can increase the complexity and cruft. Also, I don't know; how many devices does Kindle produce in a year -- and how many years has it been producing devices? This seems like a lot of extra work to gather this information.
I hate to start wearing
my "Boo Amazon" hat again, but I think they overestimate the willingness of authors and publishers to create the same ebook on different platforms. Or the willingness of consumers to purchase devices that disallow many important reading apps on it.