I personally see nothing wrong with this other than it being slightly annoying to email someone within the company, but that shouldn’t matter.

Some companies such as porkbun have whois privacy.

Source: https://porkbun.com/products/whois_privacy

Unfortunate, but not unexpected.

I feel that if someone can read your home directory, signal isn’t your worst worry. However, it’s still an issue and I’m glad they’re going to move to better security.