I think the issue is that they want to give us less time to exit out. They want to get you to watch something else on their platform ASAP. If they weren't required to show the end titles, I doubt we'd ever see them (same with broadcast and cable channels).
Despite liking the films that Taylor Sheridan wrote, I never tried Yellowstone. It just looked like a Dallas wannabe to me. But 1883 sold me just by having Sam Elliott in the cast. Loved watching it on Paramount+. So much, that I decided to try Yellowstone in spite of my misgivings. I gave up...