In the relatively recent past, it was possible to add users to Groups in the admin panel without having to write up a notification message and send them an email that they'd been added. Sometime in the last 8 months or so that was changed, and now anyone added to a group has to be notified via email, even if that Group isn't tied to any access and is solely intended as organizational. Why? It's also not possible to add people to a Group by checking off users from a list, only by typing in their names or pasting comma separated emails.
Whatever changes were made have made it harder to use the Groups function and more cumbersome for admins, as well as confusing for end users who may have no idea why they were added to a Group of what it means if there's no obvious new access granted when they login. This feels like a useless change, and one that takes the experience backwards, not forward.