I don't see any reason to assume that the rate of increase is somehow locked in. Once they start to see resistance, they can slow the rate of increase or actually reduce prices.* The "clip" doesn't have to be sustainable because it's not on autopilot, it's actively managed.
To answer the OP, no, I haven't lost the feel of WDW. Visiting with my daughters, I'm enjoying it as much as I ever did as a child, and not just in the "dad watching his daughters experience the magic" kind of way, I'm genuinely having as much fun as I always have. Our non-Disney vacations are typically camping trips in and around New England, so we have lots of time in the woods and at beaches when we want something more low key.
There are some price increases and ticketed events that I think are ridiculous, but they haven't impacted my enjoyment. I'll never do a desert party or a paid after hours event, but there are more than enough "regular" park hours for me to always do everything I want to do. I also don't think the crowds are nearly as bad as everyone makes them out to be. Yeah, Fantasyland at 1:00 in the afternoon sucks, but it's always something I can manage around with good scheduling. We're typically in the parks for four hours in the morning and four hours in the evening, every day for eight nights. Between FastPass and rope drop, we're always able to do every attraction without ever waiting in a line more than 20 minutes.
*No, they'll never actually lower rack rates or list prices, but real prices can be reduced through discounting.