On more than one occasion I have checked to see if a book is available on Logos.com, not been able to find it, bought it on Kindle and subsequently found that it is available on Vyrso. It would be good if logos.com searches were to return condensed Vyrso results on a different part of the page. I would be happy to see them returned in the main results, but suspect some would not want them in the main body, especially if there are Amish romances with similar titles to serious academic or exegetical works!
The same applies to Verbum. I don't know whether books are being published under Verbum that are not available in Logos, but I certainly read some RC theologians and wouldn't want to have to search multiple FL websites to find the book I'm after.
I suspect Faithlife is losing sales overall because of the walls being erected between various parts of the business which are there for very good reasons. They are, however, marketing categories that don't always take account of the idea that some of us drink from more than one fountain.