So basically, it sounds like they're just getting rid of the automatic bump to 2pm return times for hoppers.
At first I was upset about the change - partly because, true to form, you-know-who phrased their headline in such a way as to imply that selection wouldn't be allowed until 2PM, and partly because hop-stacking was a big part of why our touring strategy worked so well for us in May.
But after getting proper details, and thinking about our recent trip, I'm less bothered. Our typical hop-stacking strategy was to go for later times first (1. - those were usually the most popular and therefore most likely to book up LLs - and 2. - it gives you space to stack the most LLs), so our first hopping LL of the day was usually already past 2 by the time we booked it. There were only a couple of times during our 10 days in the park that this would have affected our LL selections.
For hoppers, this might limit stacking a bit, as it could push your booking time, and therefore your 120 min timer later, and it potentially adds a bit more time spent using the app since now you may have to keep checking until return times move past 2pm, rather than just "select and forget."
However, I also get why this is a positive for some. It makes afternoon LL selection a bit more "fair," and should add more 2pm-ish LL availability for non-hoppers.
In the end, while I can't say I'm happy about it, it is what it is, and those of us who obsess over touring strategies will just do what we always do - adapt and figure out the most efficient strategy.