I'm all for more options, but just out of curiosity, did you try using either or both of those options and find the results unsatisfactory for any reason?
Yes I tried them. And I can't really say WHAT made them sound less than desirable because of the subjective nature of what is good or bad, but I just didn't like them. Too simple, too bland, etc. Choose your adjective. And I generated 10 different snippets trying to find something I could cobble together into a 16 bar solo and had nothing decent to work with.
I am aware that they can't approach Duane Allman to do samples, but with only 2 options I had to wonder. Between the county and blues guys who use this software, that's a wide market.