I have no problem with Kubota wanting to protect intellectual property - IMHO it is 100% their right.
But electronic distribution of media is no longer a thing of the future - it is now. So what is the motivation for not adopting it? I wouldn't even mind if they wanted to charge for it, subscription based. I wouldn't like it, but would accept it.
I always buy service manuals in hardcopy, but also have bought or subscribed to electronic versions as well. It is easier to get updated information, search for info, etc - more efficient across the board. The hardcopy, whether a book or printed from electronic, goes with me while I'm under the hood.
Also, service manuals and parts manuals are two different animals, IMHO. A service manual could be considered to cost the dealers some service business. A parts manual just makes a parts transaction easier and more efficient on both the dealer and customer, in most cases.
Ironically, I went to Kubota's site last night to look at snowblowers for my
BX24. Under the implements page for the BX60 series, they only show a picture - no description, specs, part#, etc. They used to have that information listed for the BX50 series (I could still find the old pages with a Google search) Also, if you click on the Gallery, it downloads a ZIP file of pictures. So maybe they just don't execute an online presence well.