Copyright should exist or artists and writers can't avoid having their work stolen by much larger companies.
I think it's worth defining a hard limit for non-person entities to own copyright. That'd mean post a certain limit, game code, artwork, music etc would be free to use. Human-owned copyright should probably be life with a minimum period of average life expectancy, with maybe provisions to allow it to cover your children too? Prevents corporations from waiting until your mum dies in an accident and immediately taking her life's work and using it everywhere.
Wrath's a lot easier to play, I'd say, because the mythic paths change things completely for your builds. It makes builds a lot more flexible, too, compared to Kingmaker/base PF1e.
WotR is one of my absolute fave games - probably because I GM Pathfinder 1e - so I'm super glad to see someone getting into it! Have fun, take your time. The only major timer is right at the beginning, and doesn't affect too much. Make sure you recruit Daeran, Woljif, and Ember!