There are many sources other than CONNECT, see this thread:
https://www.mobileread.com/forums/showthread.php?t=11052
Tom Clancy's choices are the sort of business decision that should be left up to authors and publishers. The Beatles decades long legal dispute with Apple drove their iTunes business decisions. It's how things go in the real world. For a guy who writes high-tech books to shun book technology, there must be history where he got burned. Nothing we can do but ask nicely for him to reconsider.