The idea is not to make longer holes, but existing holes become more reachable sometimes by players who can't reach them with a disc. As a test, I had two active women disc golfers (5+ years playing) over age 60 throw their drivers in an open field for distance. Their max throws are in the 120-135 ft range and they are unlikely to ever throw farther. When trying rings, they got to over 200 ft several times. Point being that the rings sometimes provide a way to level the playing field on holes that their skill level peers can reach with golf discs. It turns some holes into fairer technical challenges within a division versus favoring those who have the distance advantage but "equal" skills otherwise.
Note your own decline in distance typically starts around age 40. You have more total playing years ahead than you've likely played already. Considering I've played 33 years competitively, had I started at age 20, I would have already more than doubled my years playing after age 36 than before. Maybe rings should officially be allowed once players reach age 40?
I'm master's age, and have definitely lost a little bit of zip on my fastball. I'd happily bag rings (and my modded firebirds) at any tournament that would let me.