From my perspective, no line uttered during the Country Bear Jamboree reaches the level of "if I had a black light this place would look like a Jackson Pollock painting," from Guardians of the Galaxy. There may be innuendos, like those during the scene with Teddi Berra, but there is no mention of seminal fluid covering the walls.
Star Lord is coming to Epcot. The Country Bears are certainly more age-appropriate for children in the early and middle childhood stages of development than Peter Quill.