I think blanket acceptance of they/them in all instances where a preferred pronoun isn't known should be pushed for and accepted but a lot of people disagree so

I think it's a big PR fuck up honestly because people want like, a pattern, they want routine, they don't want to have to figure out what is appropriate for each of the potentially hundreds of people they meet every day

And while it might "be easy" to just interact with people and if you misgender them, apologize and correct yourself (like other comments here), anybody who thinks that's an okay state of affairs is basically not thinking at all about human psychology. Most people don't want to be seen "as an asshole" for something that "isn't their fault" so you get the exact sort of reaction you see in this twitter screenshot. People get mad when they're put into a position of "you're probably going to look like an asshole" and, to me, it seems like such a no brainer solution to say "gender neutral pronouns are always okay" because it gives people a safe place to start interacting from