So many words, so many questions:
1. Who are you?
2. What is your use-case?
3. What exact problem(s) are you facing with existing pattern files?
4. What is the benefit of changing licenses to BSD-style ones
4a. For you?
4b. For developers?
4c. For third-party users?
I would add another question:
4d. For the open source world in general?
I think the latter point eclipses the previous ones. I wouldn't
change the license for a particular project, but if the whole
community benefits from the pattern files, it's a good idea,
no matter who uses them and why.
Let me point out I was considering changing the license to a very
permissive one long before I was invited to do so a few weeks ago.
Javier