I get your point, but I’m not sure you can apply enterprise problems to small businesses. Take my specific example, my department has a mailing list called something along the lines of Digitalisation, we have this because we’re 7000 employees at 200+ locations and you can be pretty sure a teacher at one of our schools don’t know who I am or what my position is called. They would know that they need to contact Digitalisation, so we have a mailing list for it, just like this particular school has a naming list with the schools name in case I needed to contact them.

That wouldn’t really be an issue when you have 50 employees in the same office. Aside from that, I think Microsoft actually ended up adding a standard feature to hide Teams mail-addresses from the outlook addressbook when we raised the issue with Seattle, we just needed the extra “Teams -“ to make it easier to maintain.