Personally, while the research is interesting, I think it's also being far too overused as justification to remove/not add options. The common counterargument of "just use another product that does have the option you want" often turns out to be as fruitless - that other product may not have some option you want (that this one does), due to the same reasoning!

I also fundamentally disagree that removing choices is a good thing - the research says it makes (most?) people feel better, which suggests that they don't want to think about making any choices because it is somehow difficult for them and causes anxiety. Logically, this means they would be most satisfied and happy if they didn't have to make any choices or do any thinking at all, and something/someone else made all the decisions for them - the equivalent of having no freedom or control over one's life. Is this really what we want society to become?

"Making choices is hard, so just give up"? To me, that's where it looks like things are heading, and quite frankly it's a rather disturbing trend. I most definitely do not want to have nearly every decision in my life made by someone else, and find the anxiety/difficulty of the process to be absolutely normal.

Maybe there is a good balance somewhere in between, but I'm definitely strongly biased in the direction of being able to have the freedom to make choices, no matter how difficult, and take control of my life.