Well you re a little older than us. We can only hope to get to your level of Zen one day.
I guess my thoughts on grassgate are this:
-Ideally, we'd have regular grass, but the environmental situation appears to be very real in CA. I'm nowhere near the area on a regular basis, but I have seen a fair amount of coverage on drought, water shortages either present now or coming in the future, wildfires, etc. I don't like when it results in changes like this, but I understand it.
-IF that is the reason for the change (it likely is), I would rather they do it with grass than with, say, the environments of the Jungle Cruise, trees, or more dramatic landscaping than typical grass, which to me is nice enough but easily the least essential element of DL landscaping.
-Watering lawns is objectively a more wasteful, less essential use of water than using water for things like hydration or power.
-I don't know that it makes Disneyland look particularly good if the water situation continues to get worse but they're given a pass to continue watering their lawns as if it was 2012. A similar situation nearly happened in March 2020 when Disneyland *almost* was allowed to continue as normal despite covid when everything else was shutting down and, regardless of your feelings of how all of that transpired and whether or not the right thing was done, people were right to call out that granting the park a special exemption in those circumstances made no sense. I could see the same argument being made with water usage should present issues continue.
-Although it is likely the case, we don't yet know for sure if this is a permanent change.
-I find that a lot of the time when these changes are announced they are accompanied by overly zoomed in, unflattering photos to maximize the degree of horribleness they seem to portray. Yes, there's park documentation occurring, but also a thirst for the almighty click. They're going to get more clicks with ZOMG the Sky Is Falling With Unflattering Photo Footage than if they just say in a neutral tone that it's happening and they know it, and this will always inform how they present their information to the public. What I find is that when this technique and those Offensive Changes are spread throughout the internet is that they're typically not nearly as offensive or noticeable in person (as an aside, have you had a chance to see this grass in person? I don't recall). It's all about the way it was originally presented, especially if DRAMA! was (is) involved. I think that's the real test-if I hadn't known about this change and been given the least flattering photo possible declaring its existence, would I have noticed? Granted, for me the answer would probably be no, but perhaps it would be different for you or others who are local.
-I will not judge people for whom this is a deal breaker, but for me it's not. Again, this may be somewhat useless as I'm commenting from Illinois far away from the park and it will be awhile before I see the changes in person, assuming that they are permanent. Perhaps then I will feel differently, but for now, this is not something that I am going to fret about.