I still have the "Projects in this bundle are hidden in your library by default" note, but the second one about an add-all button does seem to have been removed. Thanks for the heads up, I'll dig around...
This thread had people suggest using scripts, but an admin requested that we don't do that in order to keep things easy on the server. However, this post suggests that they've given up on implementing anything on their end.
Seems like we're on our own.