I just find it to be a bit too "busy".
I can understand the usefulness of all the information and tabs for people who don't already have all of the extensions, and I can understand the value to you for the purposes of marketing the tools since the core plugin is free.
However, if we are building sites for clients, then we will add the extensions we need or which are beneficial to the build. In this case the additional tabs and marketing material feel like "clutter".
Anyway, it's just my wish to be able to hide the dashboard welcome page (and all the tabs inside it) because I don't have a use for them, it's not that I want to rebrand anything.
It's also not all that important, but it would be nice, for the sake of (my personal perception of) tidiness.