[sfn42]

Probably because there is some mildly decent reason (or very good, I don't know) to avoid them and it really doesn't matter enough to worry about getting around it.

Why would you want emojis in your password? It's a piece of text not meant to be seen, emojis are meant to be seen. Just randomly generate some characters and get on with your life. I don't understand why you care about this at all, it's such a pointless thing to complain about.

[ornornor]

To me it signals bad engineering in the underlying system which doesn’t exactly encourage trusting the system with my data.

[sfn42]

I think simplicity is good engineering. Bending over backwards to support pointless usecases isn't good engineering. Almost nobody would use this and the ones who would don't need to. Why put in the effort?